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Zhou HD, Walker JD, Olson D. Asynchronous lecture participation negatively predicts exam scores for females and students of color in an introductory physiology course during COVID-19. Adv Physiol Educ 2024; 48:254-259. [PMID: 38328812 DOI: 10.1152/advan.00112.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 01/17/2024] [Accepted: 01/31/2024] [Indexed: 02/09/2024]
Abstract
In response to COVID-19, educators rapidly pivoted to new and innovative ways of delivering lecture material. The ability to host synchronous lectures on platforms like Zoom gave students continued access to classroom material in the face of an ongoing pandemic. The purpose of this study was to investigate the differences in exam scores between students attending a physiology class (PHSL3051) synchronously via Zoom or asynchronously by viewing recorded lectures posted after class. Students in PHSL3051 were evaluated with four unit exams and one cumulative final exam. Although pooled analysis of all students showed that synchronous lecture viewing positively predicted exam scores, this positive association was even larger when the data were analyzed by gender and ethnicity. For female-identified students and students of color (SOC), attending lectures synchronously was associated with average scores on every unit exam that were higher by 2.7-7.4 percentage points. Moreover, the greater a student's synchronous participation in the course throughout the semester, the better that student's performance on the cumulative final exam was likely to be. These data highlight the need to better understand how different groups of undergraduate students select and respond to different assessment methods used in the same course, which may have long-term effects on their overall performance at 4-year institutions.NEW & NOTEWORTHY This study examined the relationship between lecture attendance (synchronous or asynchronous) and exam scores throughout the semester. Although everyone in the course benefited from synchronous lecture attendance, our data indicated that students of color (SOC) and female-identified students benefited most. SOC and female-identified students who participated synchronously had even higher mean scores on all exams within the course compared with SOC and female-identified students who participated asynchronously by watching recordings of the same lectures.
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Affiliation(s)
- Hana D Zhou
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, United States
| | - J D Walker
- Center for Educational Innovation, University of Minnesota, Minneapolis, Minnesota, United States
| | - Dalay Olson
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota, United States
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Potterveld SK, Olson D. Primary Carcinoid Tumor of the Prostatic Urethra: Case Report and Review of the Literature. Am J Clin Pathol 2022. [DOI: 10.1093/ajcp/aqac126.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract
Introduction/Objective
We report a case of a 72-year-old male with a past medical history of previously treated urothelial cell carcinoma without recurrence in over ten years.
Methods/Case Report
Surveillance cystoscopy revealed a small lesion involving the prostatic urethra. Microscopic examination of the prostatic urethra lesion revealed a proliferation of pseudoglandular structures within the lamina propria adjacent to an area of urothelial cystitis cystica et glandularis. The pseudoglandular structures contained primarily small bland nuclei with fine chromatin and featured frequent intracytoplasmic neuroendocrine granules. Scattered foci of enlarged hyperchromatic nuclei were present, but no necrosis or increased mitotic activity was identified. Immunohistochemistry revealed the lesional cells were diffusely positive for chromogranin and synaptophysin; while negative for GATA3 and NKX3.1. The histologic features and immunoprofile are characteristic of primary carcinoid tumor of the prostatic urethra, which uniquely shows a predominantly pseudoglandular architecture compared to carcinoid tumors of other sites and are often associated with reactive urothelial proliferations.
Results (if a Case Study enter NA)
NA.
Conclusion
Acknowledgement of this rare entity as a diagnostic mimicker is critical to ensure proper treatment and management of the patient.
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Affiliation(s)
- S K Potterveld
- Pathology, University of Colorado , Denver, Connecticut , United States
| | - D Olson
- Pathology, VA Eastern Colorado Healthcare System , Aurora, Colorado , United States
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Schlechter B, Ileana Dumbrava E, Olson D, Saibil S, Pieke B, Bouvier R, Moss K, Turnus N, Bader A, Adib D. 778TiP A phase I/II trial investigating safety and efficacy of autologous TAC T-cells targeting HER2 in relapsed or refractory solid tumors. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Adler C, Ahammed Z, Allgower C, Amonett J, Anderson BD, Anderson M, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Boucham A, Brandin A, Bravar A, Cadman RV, Caines H, Calderón de la Barca Sánchez M, Cardenas A, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Csanád M, Deng WS, Derevschikov AA, Didenko L, Dietel T, Draper JE, Dunin VB, Dunlop JC, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Filimonov K, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Grachov O, Grigoriev V, Guedon M, Gushin E, Hallman TJ, Hardtke D, Harris JW, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Humanic TJ, Igo G, Ishihara A, Ivanshin YI, Jacobs P, Jacobs WW, Janik M, Johnson I, Jones PG, Judd EG, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Krueger K, Kuhn C, Kulikov AI, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lakehal-Ayat L, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lebedev A, Lednický R, Leontiev VM, LeVine MJ, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, LoCurto G, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Ma R, Majka R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mitchell J, Moiseenko VA, Moore CF, Morozov V, de Moura MM, Munhoz MG, Nelson JM, Nevski P, Niida T, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Peryt W, Petrov VA, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potrebenikova E, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Rykov V, Sakrejda I, Salur S, Sandweiss J, Saulys AC, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schüttauf A, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shestermanov KE, Shimanskii SS, Shvetcov VS, Skoro G, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stephenson EJ, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Šumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thomas JH, Thompson M, Tikhomirov V, Todoroki T, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasilevski IM, Vasiliev AN, Vigdor SE, Voloshin SA, Wang F, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Xu N, Xu Z, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zoulkarneev R, Zubarev AN. Erratum: Azimuthal Anisotropy of K_{S}^{0} and Λ+Λ[over ¯] Production at Midrapidity from Au+Au Collisions at sqrt[s]_{NN}=130 GeV [Phys. Rev. Lett. 89, 132301 (2002)]. Phys Rev Lett 2021; 127:089901. [PMID: 34477449 DOI: 10.1103/physrevlett.127.089901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Indexed: 06/13/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.89.132301.
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Adams J, Adler C, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Anderson M, Arkhipkin D, Averichev GS, Badyal SK, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bezverkhny BI, Bhardwaj S, Bhaskar P, Bhati AK, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Botje M, Boucham A, Brandin A, Bravar A, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Carroll J, Castillo J, Castro M, Cebra D, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Chernenko SP, Cherney M, Chikanian A, Choi B, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Csanád M, Das D, Das S, Derevschikov AA, Didenko L, Dietel T, Dong WJ, Dong X, Draper JE, Du F, Dubey AK, Dunin VB, Dunlop JC, Dutta Majumdar MR, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Filip P, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Gagunashvili N, Gans J, Ganti MS, Gaudichet L, Germain M, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grigoriev V, Gronstal S, Grosnick D, Guedon M, Guertin SM, Gupta A, Gushin E, Gutierrez TD, Hallman TJ, Hardtke D, Harris JW, Heinz M, Henry TW, Heppelmann S, Herston T, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Huang SL, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Jiang H, Johnson I, Jones PG, Judd EG, Kabana S, Kaneta M, Kaplan M, Keane D, Khodyrev VY, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kunde GJ, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lansdell CP, Lasiuk B, Laue F, Lauret J, Lebedev A, Lednický R, LeVine MJ, Li C, Li Q, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu Z, Liu QJ, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma J, Ma R, Ma YG, Magestro D, Mahajan S, Mangotra LK, Mahapatra DP, Majka R, Manweiler R, Margetis S, Markert C, Martin L, Marx J, Matis HS, Matulenko YA, McShane TS, Meissner F, Melnick Y, Meschanin A, Messer M, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mishra D, Mitchell J, Mohanty B, Molnar L, Moore CF, Mora-Corral MJ, Morozov DA, Morozov V, de Moura MM, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Nevski P, Niida T, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, Pandey SU, Pal SK, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Perevoztchikov V, Perkins C, Peryt W, Petrov VA, Phatak SC, Picha R, Planinic M, Pluta J, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rai G, Rakness G, Raniwala R, Raniwala S, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevski OV, Romero JL, Rose A, Roy C, Ruan LJ, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Savin I, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schweda K, Seger J, Seliverstov D, Seyboth P, Shahaliev E, Shao M, Sharma M, Shestermanov KE, Shimanskii SS, Singaraju RN, Simon F, Skoro G, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus S, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Šumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, Todoroki T, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Trivedi MD, Trofimov V, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Vasiliev AN, Vasiliev M, Vigdor SE, Viyogi YP, Voloshin SA, Waggoner W, Wang F, Wang G, Wang XL, Wang ZM, Ward H, Watson JW, Wells R, Westfall GD, Whitten C, Wieman H, Willson R, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yamamoto E, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang WM, Zhang ZP, Żołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Erratum: Azimuthal Anisotropy at the Relativistic Heavy Ion Collider: The First and Fourth Harmonics [Phys. Rev. Lett. 92, 062301 (2004)]. Phys Rev Lett 2021; 127:069901. [PMID: 34420354 DOI: 10.1103/physrevlett.127.069901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Indexed: 06/13/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.92.062301.
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Dinerstein E, Joshi AR, Vynne C, Lee ATL, Pharand-Deschênes F, França M, Fernando S, Birch T, Burkart K, Asner GP, Olson D. A "Global Safety Net" to reverse biodiversity loss and stabilize Earth's climate. Sci Adv 2020; 6:6/36/eabb2824. [PMID: 32917614 PMCID: PMC7473742 DOI: 10.1126/sciadv.abb2824] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 07/22/2020] [Indexed: 05/06/2023]
Abstract
Global strategies to halt the dual crises of biodiversity loss and climate change are often formulated separately, even though they are interdependent and risk failure if pursued in isolation. The Global Safety Net maps how expanded nature conservation addresses both overarching threats. We identify 50% of the terrestrial realm that, if conserved, would reverse further biodiversity loss, prevent CO2 emissions from land conversion, and enhance natural carbon removal. This framework shows that, beyond the 15.1% land area currently protected, 35.3% of land area is needed to conserve additional sites of particular importance for biodiversity and stabilize the climate. Fifty ecoregions and 20 countries contribute disproportionately to proposed targets. Indigenous lands overlap extensively with the Global Safety Net. Conserving the Global Safety Net could support public health by reducing the potential for zoonotic diseases like COVID-19 from emerging in the future.
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Affiliation(s)
| | - A R Joshi
- University of Minnesota, Minneapolis, MN, USA
| | - C Vynne
- RESOLVE, Washington, DC, USA
| | | | | | | | | | - T Birch
- Google, Mountain View, CA, USA
| | - K Burkart
- One Earth, Rockefeller Philanthropy, Los Angeles, CA, USA
| | - G P Asner
- Arizona State University, Tempe, AZ, USA
| | - D Olson
- World Wildlife Fund, Hong Kong SAR
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Colbert AM, Bauer D, Arroyave P, Hernández S, Martínez MA, Lamb MM, Paniagua-Avila A, Olson D, Calvimontes DM, Bolaños GA, El Sahly EJ, Muñoz FM, Connery AK. Performance of Young Children in Rural Guatemala on the Mullen Scales of Early Learning. Arch Clin Neuropsychol 2019. [DOI: 10.1093/arclin/acz029.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Objective
The literature supports using tests developed in high-income countries to assess children in low and lower-middle income countries (LMICs) when carefully translated, adapted, and applied (Holding et al., 2018; Mitchell et al., 2017). Research has shown the Mullen Scales of Early Learning (MSEL) to have adequate validity and sensitivity when used in LMICs (Bangirana et al., 2014; Koura et al., 2013), as well as equivalency to the American normative sample in lower risk populations (Bornman et al., 2010). Here, we describe the pattern of MSEL results in rural Guatemala.
Participants and Method
Children (n = 842; M enrollment age = 15.9 months; range 0-5 years) enrolled in an observational study of postnatal Zika exposure in rural Guatemala were administered an adapted and translated version of the MSEL (Connery et al., in press). To date, 352 children completed one, 393 children completed two, and 97 children completed three MSELs, for a total of 1,429 administrations.
Results
MSEL composite scores were similar to the American normative sample in children <12 months (M = 93.3, SD = 11.1), but lower for children ages 1-5 years (mean = 71.1, SD = 15.1, p < 0.0001). Moreover, lower scores were observed in children ages 1-5 years for all MSEL subscales, with the largest differences observed in receptive language (<12 years: mean = 47.8, SD = 7.1; 1-5 years: mean = 35.1, SD = 10.0, p < 0.0001).
Conclusions
Results are consistent with research that demonstrates a widening gap in test performance over time between children from higher and lower risk communities (Fernald et al., 2011; Paxson et al., 2005; Schady et al., 2015). Although findings are not meant to diagnose individual children, they highlight population changes in neurodevelopmental skills and the need for a better understanding of developmental patterns in LMICs. Future analyses will evaluate the impact of developmental risk factors over time and the performance of the MSEL in this population.
References
Bangirana, P., Opoka, R. O., Boivin, M. J., Idro, R., Hodges, J. S., Romero, R. A., … John, C. C. (2014). Severe Malarial Anemia is Associated With Long-term Neurocognitive Impairment. Clinical Infectious Diseases, 59(3), 336–344. https://doi.org/10.1093/cid/ciu293. Bornman, J., Sevcik, R. A., Romski, M., & Pae, H. K. (2010). Successfully Translating Language and Culture when Adapting Assessment Measures, ppi_254 111.118. Retrieved from https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1741-1130.2010.00254.x. Fernald, L. C. H., Weber, A., Galasso, E., & Ratsifandrihamanana, L. (2011). Socioeconomic gradients and child development in a very low income population: Evidence from Madagascar. Developmental Science, 14(4), 832–847. https://doi.org/10.1111/j.1467-7687.2010.01032.x. Holding, P., Anum, A., van de Vijver, F. J. R., Vokhiwa, M., Bugase, N., Hossen, T., … Gomes, M. (2018). Can we measure cognitive constructs consistently within and across cultures? Evidence from a test battery in Bangladesh, Ghana, and Tanzania. Applied Neuropsychology: Child, 7(1), 1-13 https://doi.org/10.1080/21622965.2016.1206823. Koura, K. G., Boivin, M. J., Davidson, L. L., Ouédraogo, S., Zoumenou, R., Alao, M. J., … Bodeau-Livinec, F. (2013). Usefulness of child development assessments for low-resource settings in francophone Africa. Journal of Developmental and Behavioral Pediatrics : JDBP, 34(7), 486–93. https://doi.org/10.1097/DBP.0b013e31829d211c. Mitchell, J. M., Tomlinson, M., Bland, R. M., Houle, B., Stein, A., & Rochat, T. J. (2017). Confirmatory factor analysis of the Kaufman assessment battery in a sample of primary school-aged children in rural South Africa. South African Journal of Psychology, 1–19. https://doi.org/10.1177/0081246317741822. Paxson, C., Schady, N., Izquierdo, S., León, M., Lucio, R., Ponce, J., … Hall, W. (2005). Cognitive Development among Young Children in Ecuador The Roles of Wealth, Health, and Parenting. Retrieved from http://econ.worldbank.org. Schady, N., Behrman, J., Araujo, M. C., Azuero, R., Bernal, R., Bravo, D., … Vakis, R. (2015). Wealth gradients in early childhood cognitive development in five Latin American countries. The Journal of Human Resources, 50(2), 446–463. Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/25983344.
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Dinerstein E, Vynne C, Sala E, Joshi AR, Fernando S, Lovejoy TE, Mayorga J, Olson D, Asner GP, Baillie JEM, Burgess ND, Burkart K, Noss RF, Zhang YP, Baccini A, Birch T, Hahn N, Joppa LN, Wikramanayake E. A Global Deal For Nature: Guiding principles, milestones, and targets. Sci Adv 2019; 5:eaaw2869. [PMID: 31016243 PMCID: PMC6474764 DOI: 10.1126/sciadv.aaw2869] [Citation(s) in RCA: 185] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 03/28/2019] [Indexed: 05/22/2023]
Abstract
The Global Deal for Nature (GDN) is a time-bound, science-driven plan to save the diversity and abundance of life on Earth. Pairing the GDN and the Paris Climate Agreement would avoid catastrophic climate change, conserve species, and secure essential ecosystem services. New findings give urgency to this union: Less than half of the terrestrial realm is intact, yet conserving all native ecosystems-coupled with energy transition measures-will be required to remain below a 1.5°C rise in average global temperature. The GDN targets 30% of Earth to be formally protected and an additional 20% designated as climate stabilization areas, by 2030, to stay below 1.5°C. We highlight the 67% of terrestrial ecoregions that can meet 30% protection, thereby reducing extinction threats and carbon emissions from natural reservoirs. Freshwater and marine targets included here extend the GDN to all realms and provide a pathway to ensuring a more livable biosphere.
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Affiliation(s)
| | | | - E. Sala
- National Geographic Society, Washington, DC, USA
| | - A. R. Joshi
- University of Minnesota, Minneapolis, MN, USA
| | | | | | - J. Mayorga
- National Geographic Society, Washington, DC, USA
- University of California, Santa Barbara, Santa Barbara, CA, USA
| | - D. Olson
- Zoological Society of London, London, UK
| | | | | | - N. D. Burgess
- UN Environment World Conservation Monitoring Centre, Cambridge, UK
| | - K. Burkart
- Leonardo DiCaprio Foundation, Los Angeles, CA, USA
| | - R. F. Noss
- Florida Institute for Conservation Science, Chuluota, FL, USA
| | - Y. P. Zhang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - A. Baccini
- Woods Hole Research Center, Woods Hole, MA, USA
| | | | - N. Hahn
- RESOLVE, Washington, DC, USA
- Colorado State University, Fort Collins, CO, USA
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Abstract
Explicit emphasis on teaching science process skills leads to both gains in the skills themselves and, strikingly, deeper understanding of content. Here, we created and tested a series of online, interactive tutorials with the goal of helping undergraduate students develop science process skills. We designed the tutorials in accordance with evidence-based multimedia design principles and student feedback from usability testing. We then tested the efficacy of the tutorials in an introductory undergraduate biology class. On the basis of a multivariate ordinary least-squares regression model, students who received the tutorials are predicted to score 0.82 points higher on a 15-point science process skill assessment than their peers who received traditional textbook instruction on the same topic. This moderate but significant impact indicates that well-designed online tutorials can be more effective than traditional ways of teaching science process skills to undergraduate students. We also found trends that suggest the tutorials are especially effective for nonnative English-speaking students. However, due to a limited sample size, we were unable to confirm that these trends occurred due to more than just variation in the student group sampled.
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Affiliation(s)
- Maxwell Kramer
- Department of Biology Teaching and Learning, University of Minnesota, Minneapolis, MN 55455
- *Address correspondence to: Maxwell Kramer ()
| | - Dalay Olson
- Department of Biology Teaching and Learning, University of Minnesota, Minneapolis, MN 55455
| | - J. D. Walker
- Center for Educational Innovation, University of Minnesota, Minneapolis, MN 55414
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Vogelsang E, Shultz K, Olson D. LATER LIFE CAREER CHANGES AND POSITIVE EMOTIONAL OUTCOMES: THE ROLES OF AGENCY AND SOCIAL RESOURCES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- E. Vogelsang
- California State University-San Bernardino, San Bernardino, California,
| | - K.S. Shultz
- California State University-San Bernardino, San Bernardino, California,
| | - D. Olson
- University of La Verne, La Verne, California
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White LF, Darling JR, Moser DE, Reinhard DA, Prosa TJ, Bullen D, Olson D, Larson DJ, Lawrence D, Martin I. Atomic-scale age resolution of planetary events. Nat Commun 2017; 8:15597. [PMID: 28548083 PMCID: PMC5477514 DOI: 10.1038/ncomms15597] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 04/12/2017] [Indexed: 12/04/2022] Open
Abstract
Resolving the timing of crustal processes and meteorite impact events is central to understanding the formation, evolution and habitability of planetary bodies. However, identifying multi-stage events from complex planetary materials is highly challenging at the length scales of current isotopic techniques. Here we show that accurate U-Pb isotopic analysis of nanoscale domains of baddeleyite can be achieved by atom probe tomography. Within individual crystals of highly shocked baddeleyite from the Sudbury impact structure, three discrete nanostructural domains have been isolated yielding average 206Pb/238U ages of 2,436±94 Ma (protolith crystallization) from homogenous-Fe domains, 1,852±45 Ma (impact) from clustered-Fe domains and 1,412±56 Ma (tectonic metamorphism) from planar and subgrain boundary structures. Baddeleyite is a common phase in terrestrial, Martian, Lunar and asteroidal materials, meaning this atomic-scale approach holds great potential in establishing a more accurate chronology of the formation and evolution of planetary crusts. Constraining the timing of crustal processes and impact events remains challenging. Here, the authors show that atom probe tomography can produce highly accurate U-Pb isotopic age constraints in baddeleyite crystals, which is a common phase in terrestrial, Martian, Lunar and asteroidal materials.
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Affiliation(s)
- L F White
- School of Earth and Environmental Sciences, University of Portsmouth, Burnaby Building, Burnaby Road, Portsmouth PO1 3QL, UK
| | - J R Darling
- School of Earth and Environmental Sciences, University of Portsmouth, Burnaby Building, Burnaby Road, Portsmouth PO1 3QL, UK
| | - D E Moser
- Department of Earth Sciences, University of Western Ontario, London, Canada N6A 5B7
| | | | - T J Prosa
- CAMECA, Madison, Wisconsin 53711, USA
| | - D Bullen
- School of Earth and Environmental Sciences, University of Portsmouth, Burnaby Building, Burnaby Road, Portsmouth PO1 3QL, UK
| | - D Olson
- CAMECA, Madison, Wisconsin 53711, USA
| | | | | | - I Martin
- CAMECA, Madison, Wisconsin 53711, USA
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Affiliation(s)
- R. B. Stephens
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - D. Olson
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - H. Huang
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - J. B. Gibson
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
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Theegala M, Chiguila Arevalo R, Viana V, Olson D, Aryana KJ. 0545 Influence of flax seed on the bile tolerances of Lactobacillus acidophilus, Lactobacillus bulgaricus, and Streptococcus thermophilus. J Anim Sci 2016. [DOI: 10.2527/jam2016-0545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Scherschligt J, Olson D, Driver RG, Yang Y. Pressure balance cross-calibration method using a pressure transducer as transfer standard. NCSL Int Meas 2016; 11:28-33. [PMID: 28303167 DOI: 10.1080/19315775.2016.1149003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Piston gauges or pressure balances are widely used to realize the SI unit of pressure, the pascal, and to calibrate pressure sensing devices. However, their calibration is time consuming and requires a lot of technical expertise. In this paper, we propose an alternate method of performing a piston gauge cross calibration that incorporates a pressure transducer as an immediate in-situ transfer standard. For a sufficiently linear transducer, the requirement to exactly balance the weights on the two pressure gauges under consideration is greatly relaxed. Our results indicate that this method can be employed without a significant increase in measurement uncertainty. Indeed, in the test case explored here, our results agreed with the traditional method within standard uncertainty, which was less than 6 parts per million.
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Affiliation(s)
- J Scherschligt
- National Institute of Standards and Technology, Gaithersburg MD 20899
| | - D Olson
- National Institute of Standards and Technology, Gaithersburg MD 20899
| | - R G Driver
- National Institute of Standards and Technology, Gaithersburg MD 20899
| | - Y Yang
- National Institute of Metrology, Beijing 100029 China
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Adamczyk L, Adkins J, Agakishiev G, Aggarwal M, Ahammed Z, Alekseev I, Alford J, Anson C, Aparin A, Arkhipkin D, Aschenauer E, Averichev G, Balewski J, Banerjee A, Barber B, Barnovska Z, Beavis D, Bellwied R, Betancourt M, Bhasin A, Bhati A, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland L, Bordyuzhin I, Borowski W, Bouchet J, Brandin A, Bridgeman A, Brovko S, Bültmann S, Bunzarov I, Burton T, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes M, Chaloupka P, Chang Z, Chattopadhyay S, Chen H, Chen J, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington M, Corliss R, Cramer J, Crawford H, Cui X, Das S, Davila Leyva A, De Silva L, Debbe R, Dedovich T, Deng J, Derevschikov A, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Dion A, Djawotho P, Dong X, Drachenberg J, Draper J, Du C, Dunkelberger L, Dunlop J, Efimov L, Engelage J, Engle K, Eppley G, Eun L, Evdokimov O, Fatemi R, Fazio S, Fedorisin J, Fersch R, Filip P, Finch E, Fisyak Y, Flores C, Gagliardi C, Gangadharan D, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Grosnick D, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hajkova O, Hamed A, Han LX, Haque R, Harris J, Hays-Wehle J, He W, Heppelmann S, Hirsch A, Hoffmann G, Hofman D, Horvat S, Huang B, Huang H, Huck P, Humanic T, Igo G, Jacobs W, Jang H, Jena C, Judd E, Kabana S, Kalinkin D, Kang K, Kauder K, Ke H, Keane D, Kechechyan A, Kesich A, Khan Z, Kikola D, Kisel I, Kisiel A, Koetke D, Kollegger T, Konzer J, Koralt I, Korsch W, Kotchenda L, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia R, Lamont M, Landgraf J, Landry K, Lauret J, Lebedev A, Lednicky R, Lee J, Leight W, LeVine M, Li C, Li W, Li X, Li X, Li Y, Li Z, Lima L, Lisa M, Liu F, Ljubicic T, Llope W, Longacre R, Luo X, Ma G, Ma Y, Madagodagettige Don D, Mahapatra D, Majka R, Manweiler R, Margetis S, Markert C, Masui H, Matis H, McDonald D, McShane T, Minaev N, Mioduszewski S, Mohanty B, Mondal M, Morozov D, Munhoz M, Mustafa M, Naglis M, Nandi B, Nasim M, Nayak T, Nelson J, Nogach L, Noh S, Nord P, Novak J, Nurushev S, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag E, Oliveira R, Olson D, Pachr M, Page B, Pal S, Pan Y, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Peterson A, Pile P, Planinic M, Pluta J, Plyku D, Pochron W, Poljak N, Porter J, Poskanzer A, Powell C, Pruneau C, Pruthi N, Przybycien M, Pujahari P, Putschke J, Qiu H, Ramachandran S, Raniwala R, Raniwala S, Ray R, Riley C, Ritter H, Roberts J, Rogachevskiy O, Romero J, Ross J, Roy A, Ruan L, Rusnak J, Sahoo N, Sahu P, Sakrejda I, Salur S, Sandacz A, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg R, Schaub J, Schmah A, Schmidke W, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shah N, Shahaliev E, Shanmuganathan P, Shao M, Sharma B, Shen W, Shi S, Shou Q, Sichtermann E, Singaraju R, Skoby M, Smirnov D, Smirnov N, Solanki D, Sorensen P, deSouza U, Spinka H, Srivastava B, Stanislaus T, Stevens J, Stock R, Strikhanov M, Stringfellow B, Suaide A, Sumbera M, Sun X, Sun X, Sun Y, Sun Z, Surrow B, Svirida D, Symons T, Szanto de Toledo A, Takahashi J, Tang A, Tang Z, Tarnowsky T, Thomas J, Timmins A, Tlusty D, Tokarev M, Trentalange S, Tribble R, Tribedy P, Trzeciak B, Tsai O, Turnau J, Ullrich T, Underwood D, Van Buren G, van Nieuwenhuizen G, Vanfossen J, Varma R, Vasconcelos G, Vasiliev A, Vertesi R, Videbæk F, Viyogi Y, Vokal S, Voloshin S, Vossen A, Wada M, Walker M, Wang F, Wang G, Wang H, Wang J, Wang Q, Wang X, Wang Y, Wang Y, Webb G, Webb J, Westfall G, Wieman H, Wissink S, Witt R, Wu Y, Xiao Z, Xie W, Xin K, Xu H, Xu N, Xu Q, Xu W, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Zawisza Y, Zbroszczyk H, Zha W, Zhang J, Zhang S, Zhang X, Zhang Y, Zhang Z, Zhao F, Zhao J, Zhong C, Zhu X, Zhu Y, Zoulkarneeva Y, Zyzak M. Neutral pion cross section and spin asymmetries at intermediate pseudorapidity in polarized proton collisions ats=200 GeV. Int J Clin Exp Med 2014. [DOI: 10.1103/physrevd.89.012001] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Joseph J, Torjman M, Reich J, Furnary A, Nasraway S, McNamara-Cullinane M, Olson D, Walton D. Evaluation of Symphony CGM, a non-invasive, transdermal continuous glucose monitoring system for use in critically ill patients. Crit Care 2014. [PMCID: PMC4069469 DOI: 10.1186/cc13629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Buck WC, Olson D, Kabue MM, Ahmed S, Nchama LK, Munthali A, Hosseinipour MC, Kazembe PN. Risk factors for mortality in Malawian children with human immunodeficiency virus and tuberculosis co-infection. Int J Tuberc Lung Dis 2013; 17:1389-95. [PMID: 24125439 PMCID: PMC5523939 DOI: 10.5588/ijtld.13.0030] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING A large urban pediatric human immunodeficiency virus (HIV) clinic in Lilongwe, Malawi. OBJECTIVE To identify demographic and clinical risk factors for mortality in children co-infected with HIV and tuberculosis (TB). DESIGN A retrospective cohort study of HIV-infected children (aged <18 years) enrolled between October 2004 and October 2010 with at least one current or historical TB diagnosis. Descriptive statistics and logistic regression analyses were performed to determine factors associated with mortality. RESULTS A total of 1561 patients met the inclusion criteria, representing 32% of patients ever enrolled. Median age at TB diagnosis was 3.8 years (interquartile range 1.5-7.4); 60.9% had severe immune suppression and 47.6% of those with available data had some degree of acute malnutrition at TB diagnosis. Of the 1113 patients with known outcomes, 225 (20.2%) died. Children with TB-HIV co-infection not initiated on antiretroviral therapy (ART) at any time were 8.8 times more likely to die compared to those initiated on ART 0-2 months after initiation of anti-tuberculosis treatment (adjusted OR 8.83, 95%CI 4.42-17.63). Severe immunosuppression and World Health Organization Stage IV were also associated with mortality. CONCLUSIONS Pediatric TB-HIV co-infection is common and mortality is high in this cohort of Malawian children. Prompt initiation of ART should be emphasized in this high-risk patient population.
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Affiliation(s)
- W C Buck
- Abbott Fund Children's Clinical Centre of Excellence, Baylor College of Medicine, Lilongwe, Malawi; Baylor College of Medicine International Pediatric AIDS Initiative, Houston, Texas, USA; Department of Pediatrics, Denver Health/University of Colorado, Denver, Colorado, USA
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Prosa T, Olson D, Geiser B, Larson D, Henry K, Steel E. Analysis of implanted silicon dopant profiles. Ultramicroscopy 2013; 132:179-85. [DOI: 10.1016/j.ultramic.2012.10.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Revised: 09/28/2012] [Accepted: 10/20/2012] [Indexed: 10/27/2022]
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer E, Averichev GS, Balewski J, Banerjee A, Barnovska Z, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bruna E, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chung P, Chwastowski J, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Ding F, Dion A, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Elnimr M, Engelage J, Eppley G, Eun L, Evdokimov O, Fatemi R, Fazio S, Fedorisin J, Fersch RG, Filip P, Finch E, Fisyak Y, Flores E, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Gliske S, Grebenyuk OG, Grosnick D, Gupta A, Gupta S, Guryn W, Haag B, Hajkova O, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huck P, Humanic TJ, Igo G, Jacobs WW, Jena C, Judd EG, Kabana S, Kang K, Kapitan J, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Kikola DP, Kiryluk J, Kisel I, Kisiel A, Klein SR, Koetke DD, Kollegger T, Konzer J, Koralt I, Korsch W, Kotchenda L, Kravtsov P, Krueger K, Kulakov I, Kumar L, Lamont MAC, Landgraf JM, Landry KD, Lapointe S, Lauret J, Lebedev A, Lednicky R, Lee JH, Leight W, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lima LM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Longacre RS, Lu Y, Luo X, Luszczak A, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Mioduszewski S, Mitrovski MK, Mohammed Y, Mohanty B, Mondal MM, Munhoz MG, Mustafa MK, Naglis M, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nogach LV, Novak J, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Oliveira RAN, Olson D, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Poljak N, Porter J, Poskanzer AM, Powell CB, Pruneau C, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Ruan L, Rusnak J, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandacz A, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke B, Schmitz N, Schuster TR, Seger J, Seyboth P, Shah N, Shahaliev E, Shao M, Sharma B, Sharma M, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, Desouza UG, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thomas JH, Tian J, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Videbæk F, Viyogi YP, Vokal S, Voloshin SA, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yang Y, Yepes P, Yi L, Yip K, Yoo IK, Zawisza M, Zbroszczyk H, Zhang JB, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Measurement of J/ψ azimuthal anisotropy in Au+Au collisions at sqrt[s(NN)]=200 GeV. Phys Rev Lett 2013; 111:052301. [PMID: 23952389 DOI: 10.1103/physrevlett.111.052301] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 05/10/2013] [Indexed: 06/02/2023]
Abstract
The measurement of J/ψ azimuthal anisotropy is presented as a function of transverse momentum for different centralities in Au+Au collisions at sqrt[s(NN)]=200 GeV. The measured J/ψ elliptic flow is consistent with zero within errors for transverse momentum between 2 and 10 GeV/c. Our measurement suggests that J/ψ particles with relatively large transverse momenta are not dominantly produced by coalescence from thermalized charm quarks, when comparing to model calculations.
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Affiliation(s)
- L Adamczyk
- AGH University of Science and Technology, Cracow, Poland
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer E, Averichev GS, Balewski J, Banerjee A, Barnovska Z, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bruna E, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chung P, Chwastowski J, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Ding F, Dion A, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Elnimr M, Engelage J, Eppley G, Eun L, Evdokimov O, Fatemi R, Fazio S, Fedorisin J, Fersch RG, Filip P, Finch E, Fisyak Y, Flores E, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Gliske S, Grebenyuk OG, Grosnick D, Gupta A, Gupta S, Guryn W, Haag B, Hajkova O, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huck P, Humanic TJ, Igo G, Jacobs WW, Jena C, Judd EG, Kabana S, Kang K, Kapitan J, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Kikola DP, Kiryluk J, Kisel I, Kisiel A, Klein SR, Koetke DD, Kollegger T, Konzer J, Koralt I, Korsch W, Kotchenda L, Kravtsov P, Krueger K, Kulakov I, Kumar L, Lamont MAC, Landgraf JM, Landry KD, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee JH, Leight W, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lima LM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Longacre RS, Lu Y, Luo X, Luszczak A, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Mioduszewski S, Mitrovski MK, Mohammed Y, Mohanty B, Mondal MM, Munhoz MG, Mustafa MK, Naglis M, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nogach LV, Novak J, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Oliveira RAN, Olson D, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Poljak N, Porter J, Poskanzer AM, Powell CB, Pruneau C, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Ruan L, Rusnak J, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandacz A, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke B, Schmitz N, Schuster TR, Seger J, Seyboth P, Shah N, Shahaliev E, Shao M, Sharma B, Sharma M, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, deSouza UG, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thomas JH, Tian J, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Videbæk F, Viyogi YP, Vokal S, Voloshin SA, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yang Y, Yepes P, Yi L, Yip K, Yoo IK, Zawisza M, Zbroszczyk H, Zhang JB, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Observation of an energy-dependent difference in elliptic flow between particles and antiparticles in relativistic heavy ion collisions. Phys Rev Lett 2013; 110:142301. [PMID: 25166982 DOI: 10.1103/physrevlett.110.142301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Indexed: 06/03/2023]
Abstract
Elliptic flow (v(2)) values for identified particles at midrapidity in Au + Au collisions, measured by the STAR experiment in the beam energy scan at RHIC at sqrt[s(NN)] = 7.7-62.4 GeV, are presented. A beam-energy-dependent difference of the values of v(2) between particles and corresponding antiparticles was observed. The difference increases with decreasing beam energy and is larger for baryons compared to mesons. This implies that, at lower energies, particles and antiparticles are not consistent with the universal number-of-constituent-quark scaling of v(2) that was observed at sqrt[s(NN)] = 200 GeV.
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Affiliation(s)
- L Adamczyk
- AGH University of Science and Technology, Cracow, Poland
| | - J K Adkins
- University of Kentucky, Lexington, Kentucky 40506-0055, USA
| | - G Agakishiev
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | | | - Z Ahammed
- Variable Energy Cyclotron Centre, Kolkata 700064, India
| | - I Alekseev
- Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia
| | - J Alford
- Kent State University, Kent, Ohio 44242, USA
| | - C D Anson
- The Ohio State University, Columbus, Ohio 43210, USA
| | - A Aparin
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - D Arkhipkin
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - E Aschenauer
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G S Averichev
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - J Balewski
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - A Banerjee
- Variable Energy Cyclotron Centre, Kolkata 700064, India
| | - Z Barnovska
- Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic
| | - D R Beavis
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - R Bellwied
- University of Houston, Houston, Texas 77204, USA
| | - M J Betancourt
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - R R Betts
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - A Bhasin
- University of Jammu, Jammu 180001, India
| | - A K Bhati
- Panjab University, Chandigarh 160014, India
| | - P Bhattarai
- University of Texas, Austin, Texas 78712, USA
| | - H Bichsel
- University of Washington, Seattle, Washington 98195, USA
| | - J Bielcik
- Czech Technical University in Prague, FNSPE, Prague, 115 19, Czech Republic
| | - J Bielcikova
- Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic
| | - L C Bland
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - I G Bordyuzhin
- Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia
| | | | - J Bouchet
- Kent State University, Kent, Ohio 44242, USA
| | - A V Brandin
- Moscow Engineering Physics Institute, Moscow, Russia
| | - S G Brovko
- University of California, Davis, California 95616, USA
| | - E Bruna
- Yale University, New Haven, Connecticut 06520, USA
| | - S Bültmann
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - I Bunzarov
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - T P Burton
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | | | - X Z Cai
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - H Caines
- Yale University, New Haven, Connecticut 06520, USA
| | | | - D Cebra
- University of California, Davis, California 95616, USA
| | - R Cendejas
- Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - M C Cervantes
- Texas A&M University, College Station, Texas 77843, USA
| | - P Chaloupka
- Czech Technical University in Prague, FNSPE, Prague, 115 19, Czech Republic
| | - Z Chang
- Texas A&M University, College Station, Texas 77843, USA
| | | | - H F Chen
- University of Science & Technology of China, Hefei 230026, China
| | - J H Chen
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - J Y Chen
- Central China Normal University (HZNU), Wuhan 430079, China
| | - L Chen
- Central China Normal University (HZNU), Wuhan 430079, China
| | - J Cheng
- Tsinghua University, Beijing 100084, China
| | - M Cherney
- Creighton University, Omaha, Nebraska 68178, USA
| | - A Chikanian
- Yale University, New Haven, Connecticut 06520, USA
| | - W Christie
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - P Chung
- Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic
| | | | | | - R Corliss
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - J G Cramer
- University of Washington, Seattle, Washington 98195, USA
| | - H J Crawford
- University of California, Berkeley, California 94720, USA
| | - X Cui
- University of Science & Technology of China, Hefei 230026, China
| | - S Das
- Institute of Physics, Bhubaneswar 751005, India
| | | | - L C De Silva
- University of Houston, Houston, Texas 77204, USA
| | - R R Debbe
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - T G Dedovich
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - J Deng
- Shandong University, Jinan, Shandong 250100, China
| | | | - S Dhamija
- Indiana University, Bloomington, Indiana 47408, USA
| | - B di Ruzza
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - L Didenko
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - F Ding
- University of California, Davis, California 95616, USA
| | - A Dion
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - P Djawotho
- Texas A&M University, College Station, Texas 77843, USA
| | - X Dong
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | | | - J E Draper
- University of California, Davis, California 95616, USA
| | - C M Du
- Institute of Modern Physics, Lanzhou, China
| | | | - J C Dunlop
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - L G Efimov
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - M Elnimr
- Wayne State University, Detroit, Michigan 48201, USA
| | - J Engelage
- University of California, Berkeley, California 94720, USA
| | - G Eppley
- Rice University, Houston, Texas 77251, USA
| | - L Eun
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - O Evdokimov
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - R Fatemi
- University of Kentucky, Lexington, Kentucky 40506-0055, USA
| | - S Fazio
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - J Fedorisin
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - R G Fersch
- University of Kentucky, Lexington, Kentucky 40506-0055, USA
| | - P Filip
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - E Finch
- Yale University, New Haven, Connecticut 06520, USA
| | - Y Fisyak
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - E Flores
- University of California, Davis, California 95616, USA
| | - C A Gagliardi
- Texas A&M University, College Station, Texas 77843, USA
| | | | - D Garand
- Purdue University, West Lafayette, Indiana 47907, USA
| | - F Geurts
- Rice University, Houston, Texas 77251, USA
| | - A Gibson
- Valparaiso University, Valparaiso, Indiana 46383, USA
| | - S Gliske
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - O G Grebenyuk
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D Grosnick
- Valparaiso University, Valparaiso, Indiana 46383, USA
| | - A Gupta
- University of Jammu, Jammu 180001, India
| | - S Gupta
- University of Jammu, Jammu 180001, India
| | - W Guryn
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - B Haag
- University of California, Davis, California 95616, USA
| | - O Hajkova
- Czech Technical University in Prague, FNSPE, Prague, 115 19, Czech Republic
| | - A Hamed
- Texas A&M University, College Station, Texas 77843, USA
| | - L-X Han
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - J W Harris
- Yale University, New Haven, Connecticut 06520, USA
| | - J P Hays-Wehle
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - S Heppelmann
- Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - A Hirsch
- Purdue University, West Lafayette, Indiana 47907, USA
| | | | - D J Hofman
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - S Horvat
- Yale University, New Haven, Connecticut 06520, USA
| | - B Huang
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - H Z Huang
- University of California, Los Angeles, California 90095, USA
| | - P Huck
- Central China Normal University (HZNU), Wuhan 430079, China
| | - T J Humanic
- The Ohio State University, Columbus, Ohio 43210, USA
| | - G Igo
- University of California, Los Angeles, California 90095, USA
| | - W W Jacobs
- Indiana University, Bloomington, Indiana 47408, USA
| | - C Jena
- National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - E G Judd
- University of California, Berkeley, California 94720, USA
| | | | - K Kang
- Tsinghua University, Beijing 100084, China
| | - J Kapitan
- Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic
| | - K Kauder
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - H W Ke
- Central China Normal University (HZNU), Wuhan 430079, China
| | - D Keane
- Kent State University, Kent, Ohio 44242, USA
| | - A Kechechyan
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - A Kesich
- University of California, Davis, California 95616, USA
| | - D P Kikola
- Purdue University, West Lafayette, Indiana 47907, USA
| | - J Kiryluk
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - I Kisel
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Kisiel
- Warsaw University of Technology, Warsaw, Poland
| | - S R Klein
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D D Koetke
- Valparaiso University, Valparaiso, Indiana 46383, USA
| | | | - J Konzer
- Purdue University, West Lafayette, Indiana 47907, USA
| | - I Koralt
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - W Korsch
- University of Kentucky, Lexington, Kentucky 40506-0055, USA
| | - L Kotchenda
- Moscow Engineering Physics Institute, Moscow, Russia
| | - P Kravtsov
- Moscow Engineering Physics Institute, Moscow, Russia
| | - K Krueger
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - I Kulakov
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - L Kumar
- Kent State University, Kent, Ohio 44242, USA
| | - M A C Lamont
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - J M Landgraf
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - K D Landry
- University of California, Los Angeles, California 90095, USA
| | - S LaPointe
- Wayne State University, Detroit, Michigan 48201, USA
| | - J Lauret
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A Lebedev
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - R Lednicky
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - J H Lee
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - W Leight
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - M J LeVine
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - C Li
- University of Science & Technology of China, Hefei 230026, China
| | - W Li
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - X Li
- Purdue University, West Lafayette, Indiana 47907, USA
| | - X Li
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Y Li
- Tsinghua University, Beijing 100084, China
| | - Z M Li
- Central China Normal University (HZNU), Wuhan 430079, China
| | - L M Lima
- Universidade de Sao Paulo, Sao Paulo, Brazil
| | - M A Lisa
- The Ohio State University, Columbus, Ohio 43210, USA
| | - F Liu
- Central China Normal University (HZNU), Wuhan 430079, China
| | - T Ljubicic
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - W J Llope
- Rice University, Houston, Texas 77251, USA
| | - R S Longacre
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y Lu
- University of Science & Technology of China, Hefei 230026, China
| | - X Luo
- Central China Normal University (HZNU), Wuhan 430079, China
| | - A Luszczak
- Cracow University of Technology, Cracow, Poland
| | - G L Ma
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - Y G Ma
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | | | | | - R Majka
- Yale University, New Haven, Connecticut 06520, USA
| | - S Margetis
- Kent State University, Kent, Ohio 44242, USA
| | - C Markert
- University of Texas, Austin, Texas 78712, USA
| | - H Masui
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - H S Matis
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D McDonald
- Rice University, Houston, Texas 77251, USA
| | - T S McShane
- Creighton University, Omaha, Nebraska 68178, USA
| | | | - M K Mitrovski
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y Mohammed
- Texas A&M University, College Station, Texas 77843, USA
| | - B Mohanty
- National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - M M Mondal
- Texas A&M University, College Station, Texas 77843, USA
| | - M G Munhoz
- Universidade de Sao Paulo, Sao Paulo, Brazil
| | - M K Mustafa
- Purdue University, West Lafayette, Indiana 47907, USA
| | - M Naglis
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - B K Nandi
- Indian Institute of Technology, Mumbai, India
| | - Md Nasim
- Variable Energy Cyclotron Centre, Kolkata 700064, India
| | - T K Nayak
- Variable Energy Cyclotron Centre, Kolkata 700064, India
| | - J M Nelson
- University of Birmingham, Birmingham, United Kingdom
| | - L V Nogach
- Institute of High Energy Physics, Protvino, Russia
| | - J Novak
- Michigan State University, East Lansing, Michigan 48824, USA
| | - G Odyniec
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Ogawa
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - K Oh
- Pusan National University, Pusan, Republic of Korea
| | - A Ohlson
- Yale University, New Haven, Connecticut 06520, USA
| | - V Okorokov
- Moscow Engineering Physics Institute, Moscow, Russia
| | - E W Oldag
- University of Texas, Austin, Texas 78712, USA
| | | | - D Olson
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M Pachr
- Czech Technical University in Prague, FNSPE, Prague, 115 19, Czech Republic
| | - B S Page
- Indiana University, Bloomington, Indiana 47408, USA
| | - S K Pal
- Variable Energy Cyclotron Centre, Kolkata 700064, India
| | - Y X Pan
- University of California, Los Angeles, California 90095, USA
| | - Y Pandit
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - Y Panebratsev
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - T Pawlak
- Warsaw University of Technology, Warsaw, Poland
| | - B Pawlik
- Institute of Nuclear Physics PAN, Cracow, Poland
| | - H Pei
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - C Perkins
- University of California, Berkeley, California 94720, USA
| | - W Peryt
- Warsaw University of Technology, Warsaw, Poland
| | - P Pile
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M Planinic
- University of Zagreb, Zagreb, HR-10002, Croatia
| | - J Pluta
- Warsaw University of Technology, Warsaw, Poland
| | - N Poljak
- University of Zagreb, Zagreb, HR-10002, Croatia
| | - J Porter
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A M Poskanzer
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C B Powell
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C Pruneau
- Wayne State University, Detroit, Michigan 48201, USA
| | - N K Pruthi
- Panjab University, Chandigarh 160014, India
| | - M Przybycien
- AGH University of Science and Technology, Cracow, Poland
| | | | - J Putschke
- Wayne State University, Detroit, Michigan 48201, USA
| | - H Qiu
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S Ramachandran
- University of Kentucky, Lexington, Kentucky 40506-0055, USA
| | - R Raniwala
- University of Rajasthan, Jaipur 302004, India
| | - S Raniwala
- University of Rajasthan, Jaipur 302004, India
| | - R L Ray
- University of Texas, Austin, Texas 78712, USA
| | - C K Riley
- Yale University, New Haven, Connecticut 06520, USA
| | - H G Ritter
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | | | | | - J L Romero
- University of California, Davis, California 95616, USA
| | - J F Ross
- Creighton University, Omaha, Nebraska 68178, USA
| | - L Ruan
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - J Rusnak
- Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic
| | - N R Sahoo
- Variable Energy Cyclotron Centre, Kolkata 700064, India
| | - P K Sahu
- Institute of Physics, Bhubaneswar 751005, India
| | - I Sakrejda
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S Salur
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Sandacz
- Warsaw University of Technology, Warsaw, Poland
| | - J Sandweiss
- Yale University, New Haven, Connecticut 06520, USA
| | - E Sangaline
- University of California, Davis, California 95616, USA
| | - A Sarkar
- Indian Institute of Technology, Mumbai, India
| | - J Schambach
- University of Texas, Austin, Texas 78712, USA
| | | | - A M Schmah
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - B Schmidke
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - N Schmitz
- Max-Planck-Institut für Physik, Munich, Germany
| | | | - J Seger
- Creighton University, Omaha, Nebraska 68178, USA
| | - P Seyboth
- Max-Planck-Institut für Physik, Munich, Germany
| | - N Shah
- University of California, Los Angeles, California 90095, USA
| | - E Shahaliev
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - M Shao
- University of Science & Technology of China, Hefei 230026, China
| | - B Sharma
- Panjab University, Chandigarh 160014, India
| | - M Sharma
- Wayne State University, Detroit, Michigan 48201, USA
| | - S S Shi
- Central China Normal University (HZNU), Wuhan 430079, China
| | - Q Y Shou
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - E P Sichtermann
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R N Singaraju
- Variable Energy Cyclotron Centre, Kolkata 700064, India
| | - M J Skoby
- Indiana University, Bloomington, Indiana 47408, USA
| | - D Smirnov
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - N Smirnov
- Yale University, New Haven, Connecticut 06520, USA
| | - D Solanki
- University of Rajasthan, Jaipur 302004, India
| | - P Sorensen
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - U G deSouza
- Universidade de Sao Paulo, Sao Paulo, Brazil
| | - H M Spinka
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B Srivastava
- Purdue University, West Lafayette, Indiana 47907, USA
| | | | - J R Stevens
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - R Stock
- University of Frankfurt, Frankfurt, Germany
| | - M Strikhanov
- Moscow Engineering Physics Institute, Moscow, Russia
| | | | | | - M C Suarez
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - M Sumbera
- Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic
| | - X M Sun
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Y Sun
- University of Science & Technology of China, Hefei 230026, China
| | - Z Sun
- Institute of Modern Physics, Lanzhou, China
| | - B Surrow
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D N Svirida
- Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia
| | - T J M Symons
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | | | - J Takahashi
- Universidade Estadual de Campinas, Sao Paulo, Brazil
| | - A H Tang
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Z Tang
- University of Science & Technology of China, Hefei 230026, China
| | - L H Tarini
- Wayne State University, Detroit, Michigan 48201, USA
| | - T Tarnowsky
- Michigan State University, East Lansing, Michigan 48824, USA
| | - J H Thomas
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J Tian
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - A R Timmins
- University of Houston, Houston, Texas 77204, USA
| | - D Tlusty
- Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic
| | - M Tokarev
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - S Trentalange
- University of California, Los Angeles, California 90095, USA
| | - R E Tribble
- Texas A&M University, College Station, Texas 77843, USA
| | - P Tribedy
- Variable Energy Cyclotron Centre, Kolkata 700064, India
| | | | - O D Tsai
- University of California, Los Angeles, California 90095, USA
| | - J Turnau
- Institute of Nuclear Physics PAN, Cracow, Poland
| | - T Ullrich
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - D G Underwood
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - G Van Buren
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G van Nieuwenhuizen
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
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- Indian Institute of Technology, Mumbai, India
| | | | - F Videbæk
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y P Viyogi
- Variable Energy Cyclotron Centre, Kolkata 700064, India
| | - S Vokal
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - S A Voloshin
- Wayne State University, Detroit, Michigan 48201, USA
| | - A Vossen
- Indiana University, Bloomington, Indiana 47408, USA
| | - M Wada
- University of Texas, Austin, Texas 78712, USA
| | - F Wang
- Purdue University, West Lafayette, Indiana 47907, USA
| | - G Wang
- University of California, Los Angeles, California 90095, USA
| | - H Wang
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - J S Wang
- Institute of Modern Physics, Lanzhou, China
| | - Q Wang
- Purdue University, West Lafayette, Indiana 47907, USA
| | - X L Wang
- University of Science & Technology of China, Hefei 230026, China
| | - Y Wang
- Tsinghua University, Beijing 100084, China
| | - G Webb
- University of Kentucky, Lexington, Kentucky 40506-0055, USA
| | - J C Webb
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G D Westfall
- Michigan State University, East Lansing, Michigan 48824, USA
| | - C Whitten
- University of California, Los Angeles, California 90095, USA
| | - H Wieman
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S W Wissink
- Indiana University, Bloomington, Indiana 47408, USA
| | - R Witt
- United States Naval Academy, Annapolis, Maryland 21402, USA
| | - Y F Wu
- Central China Normal University (HZNU), Wuhan 430079, China
| | - Z Xiao
- Tsinghua University, Beijing 100084, China
| | - W Xie
- Purdue University, West Lafayette, Indiana 47907, USA
| | - K Xin
- Rice University, Houston, Texas 77251, USA
| | - H Xu
- Institute of Modern Physics, Lanzhou, China
| | - N Xu
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Q H Xu
- Shandong University, Jinan, Shandong 250100, China
| | - W Xu
- University of California, Los Angeles, California 90095, USA
| | - Y Xu
- University of Science & Technology of China, Hefei 230026, China
| | - Z Xu
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - L Xue
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - Y Yang
- Institute of Modern Physics, Lanzhou, China
| | - Y Yang
- Central China Normal University (HZNU), Wuhan 430079, China
| | - P Yepes
- Rice University, Houston, Texas 77251, USA
| | - L Yi
- Purdue University, West Lafayette, Indiana 47907, USA
| | - K Yip
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - I-K Yoo
- Pusan National University, Pusan, Republic of Korea
| | - M Zawisza
- Warsaw University of Technology, Warsaw, Poland
| | | | - J B Zhang
- Central China Normal University (HZNU), Wuhan 430079, China
| | - S Zhang
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - X P Zhang
- Tsinghua University, Beijing 100084, China
| | - Y Zhang
- University of Science & Technology of China, Hefei 230026, China
| | - Z P Zhang
- University of Science & Technology of China, Hefei 230026, China
| | - F Zhao
- University of California, Los Angeles, California 90095, USA
| | - J Zhao
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - C Zhong
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - X Zhu
- Tsinghua University, Beijing 100084, China
| | - Y H Zhu
- Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - Y Zoulkarneeva
- Joint Institute for Nuclear Research, Dubna 141 980, Russia
| | - M Zyzak
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Pennell C, Ang Q, Merialdi M, Katz M, Olsen J, Murray J, Olson D, Jacobsson B, Williams S, Menon R. O541 TWO NOVEL GENETIC VARIANTS ASSOCIATE WITH EARLY SPONTANEOUS PRETERM BIRTH IN CAUCASIAN POPULATIONS. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60971-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Adamczyk L, Agakishiev G, Aggarwal MM, Ahammed Z, Alakhverdyants AV, Alekseev I, Alford J, Anderson BD, Anson CD, Arkhipkin D, Aschenauer E, Averichev GS, Balewski J, Bannerjee A, Barnovska Z, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bruna E, Bueltmann S, Bunzarov I, Burton TP, Butterworth J, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chung P, Chwastowski J, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Cui X, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derradi de Souza R, Dhamija S, Didenko L, Ding F, Dion A, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Elnimr M, Engelage J, Eppley G, Eun L, Evdokimov O, Fatemi R, Fazio S, Fedorisin J, Fersch RG, Filip P, Finch E, Fisyak Y, Gagliardi CA, Gangadharan DR, Geurts F, Gliske S, Gorbunov YN, Grebenyuk OG, Grosnick D, Gupta S, Guryn W, Haag B, Hajkova O, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huck P, Humanic TJ, Huo L, Igo G, Jacobs WW, Jena C, Joseph J, Judd EG, Kabana S, Kang K, Kapitan J, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Kettler D, Kikola DP, Kiryluk J, Kisiel A, Kizka V, Klein SR, Koetke DD, Kollegger T, Konzer J, Koralt I, Koroleva L, Korsch W, Kotchenda L, Kravtsov P, Krueger K, Kumar L, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee JH, Leight W, LeVine MJ, Li C, Li L, Li W, Li X, Li X, Li Y, Li ZM, Lima LM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Longacre RS, Lu Y, Luo X, Luszczak A, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Mall OI, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Mioduszewski S, Mitrovski MK, Mohammed Y, Mohanty B, Morozov B, Munhoz MG, Mustafa MK, Naglis M, Nandi BK, Nasim M, Nayak TK, Nogach LV, Novak J, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Oliveira RAN, Olson D, Ostrowski P, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Plyku D, Poljak N, Porter J, Poskanzer AM, Powell CB, Prindle D, Pruneau C, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Ruan L, Rusnak J, Sahoo NR, Sakrejda I, Salur S, Sandacz A, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke B, Schmitz N, Schuster TR, Seele J, Seger J, Seyboth P, Shah N, Shahaliev E, Shao M, Sharma B, Sharma M, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, deSouza UG, Spinka HM, Srivastava B, Stanislaus TDS, Steadman SG, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Tlusty D, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Videbæk F, Viyogi YP, Vokal S, Voloshin SA, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Witzke W, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yang Y, Yepes P, Yi Y, Yip K, Yoo IK, Zawisza M, Zbroszczyk H, Zhang JB, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y. Transverse single-spin asymmetry and cross section forπ0andηmesons at large Feynmanxinp↑+pcollisions ats=200 GeV. Int J Clin Exp Med 2012. [DOI: 10.1103/physrevd.86.051101] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Adamczyk L, Agakishiev G, Aggarwal MM, Ahammed Z, Alakhverdyants AV, Alekseev I, Alford J, Anderson BD, Anson CD, Arkhipkin D, Averichev GS, Balewski J, Banerjee A, Barnovska Z, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bruna E, Bueltmann S, Bunzarov I, Burton TP, Butterworth J, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chung P, Chwastowski J, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Cui X, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derradi de Souza R, Dhamija S, Didenko L, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Elnimr M, Engelage J, Eppley G, Eun L, Evdokimov O, Fatemi R, Fedorisin J, Fersch RG, Filip P, Finch E, Fisyak Y, Gagliardi CA, Gangadharan DR, Geurts F, Gliske S, Gorbunov YN, Grebenyuk OG, Grosnick D, Gupta S, Guryn W, Haag B, Hajkova O, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huck P, Humanic TJ, Huo L, Igo G, Jacobs WW, Jena C, Joseph J, Judd EG, Kabana S, Kang K, Kapitan J, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Kettler D, Kikola DP, Kiryluk J, Kisiel A, Kizka V, Klein SR, Koetke DD, Kollegger T, Konzer J, Koralt I, Koroleva L, Korsch W, Kotchenda L, Kravtsov P, Krueger K, Kumar L, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee JH, Leight W, LeVine MJ, Li C, Li L, Li W, Li X, Li X, Li Y, Li ZM, Lima LM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Longacre RS, Lu Y, Luo X, Luszczak A, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Mioduszewski S, Mitrovski MK, Mohammed Y, Mohanty B, Morozov B, Munhoz MG, Mustafa MK, Naglis M, Nandi BK, Nasim M, Nayak TK, Nogach LV, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Oliveira RAN, Olson D, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Plyku D, Poljak N, Porter J, Poskanzer AM, Powell CB, Prindle D, Pruneau C, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ruan L, Rusnak J, Sahoo NR, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmitz N, Schuster TR, Seele J, Seger J, Seyboth P, Shah N, Shahaliev E, Shao M, Sharma B, Sharma M, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov N, Solanki D, Sorensen P, deSouza UG, Spinka HM, Srivastava B, Stanislaus TDS, Steadman SG, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Tlusty D, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Videbæk F, Viyogi YP, Vokal S, Voloshin SA, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Witzke W, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yang Y, Yepes P, Yi Y, Yip K, Yoo IK, Zawisza M, Zbroszczyk H, Zhang JB, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y. Directed flow of identified particles in Au+Au collisions at √[SNN]=200 GeV at RHIC. Phys Rev Lett 2012; 108:202301. [PMID: 23003142 DOI: 10.1103/physrevlett.108.202301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Indexed: 06/01/2023]
Abstract
STAR's measurements of directed flow (v1) around midrapidity for π±, K±, KS0, p, and p[over ¯] in Au+Au collisions at √[sNN]=200 GeV are presented. A negative v1(y) slope is observed for most of produced particles (π±, K±, KS0, and p[over ¯]). In 5%-30% central collisions, a sizable difference is present between the v1(y) slope of protons and antiprotons, with the former being consistent with zero within errors. The v1 excitation function is presented. Comparisons to model calculations (RQMD, UrQMD, AMPT, QGSM with parton recombination, and a hydrodynamics model with a tilted source) are made. For those models which have calculations of v1 for both pions and protons, none of them can describe v1(y) for pions and protons simultaneously. The hydrodynamics model with a tilted source as currently implemented cannot explain the centrality dependence of the difference between the v1(y) slopes of protons and antiprotons.
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Affiliation(s)
- L Adamczyk
- Krakow University of Technology, Crakow, Poland
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Song S, Fonarow G, Pan W, Olson D, Hernandez A, Peterson E, Reeves M, Smith E, Schwamm L, Saver J. Improved Clinical Outcomes in Medicare Beneficiaries with Acute Ischemic Stroke during Initial Implementation of the Get with the Guidelines-Stroke Program 2003-2008 (S19.003). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s19.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Song S, Fonarow G, Pan W, Olson D, Hernandez A, Peterson E, Reeves M, Smith E, Schwamm L, Saver J. Improved Clinical Outcomes in Medicare Beneficiaries with Acute Ischemic Stroke during Initial Implementation of the Get with the Guidelines-Stroke Program 2003-2008 (IN2-2.002). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.in2-2.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Agakishiev G, Aggarwal MM, Ahammed Z, Alakhverdyants AV, Alekseev I, Alford J, Anderson BD, Anson CD, Arkhipkin D, Averichev GS, Balewski J, Barnby LS, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Braidot E, Brandin AV, Brovko SG, Bruna E, Bueltmann S, Bunzarov I, Burton TP, Cai XZ, Caines H, Sánchez MCDLB, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chung P, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Cui X, Leyva AD, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, de Souza RD, Didenko L, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunlop JC, Efimov LG, Elnimr M, Engelage J, Eppley G, Estienne M, Eun L, Evdokimov O, Fachini P, Fatemi R, Fedorisin J, Fersch RG, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gangadharan DR, Geurts F, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk OG, Grosnick D, Gupta A, Gupta S, Guryn W, Haag B, Hajkova O, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Huang B, Huang HZ, Humanic TJ, Huo L, Igo G, Jacobs WW, Jena C, Joseph J, Judd EG, Kabana S, Kang K, Kapitan J, Kauder K, Ke HW, Keane D, Kechechyan A, Kettler D, Kikola DP, Kiryluk J, Kisiel A, Kizka V, Klein SR, Koetke DD, Kollegger T, Konzer J, Koralt I, Koroleva L, Korsch W, Kotchenda L, Kravtsov P, Krueger K, Kumar L, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee JH, Leight W, LeVine MJ, Li C, Li L, Li W, Li X, Li X, Li Y, Li ZM, Lima LM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Longacre RS, Lu Y, Lukashov EV, Luo X, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mitrovski MK, Mohammed Y, Mohanty B, Mondal MM, Morozov B, Morozov DA, Munhoz MG, Mustafa MK, Naglis M, Nandi BK, Nasim M, Nayak TK, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Oliveira RAN, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Pei H, Peitzmann T, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Plyku D, Poljak N, Porter J, Poskanzer AM, Powell CB, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Qiu H, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ruan L, Rusnak J, Sahoo NR, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmitz N, Schuster TR, Seele J, Seger J, Selyuzhenkov I, Seyboth P, Shah N, Shahaliev E, Shao M, Sharma M, Shi SS, Shou QY, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Solanki D, Sorensen P, deSouza UG, Spinka HM, Srivastava B, Stanislaus TDS, Steadman SG, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, de Toledo AS, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Tlusty D, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Videbæk F, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Witzke W, Wu YF, Xiao Z, Xie W, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yang Y, Yepes P, Yip K, Yoo IK, Zawisza M, Zbroszczyk H, Zhan W, Zhang JB, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y. Identified hadron compositions in p+p and Au+Au collisions at high transverse momenta at √S(NN)=200 GeV. Phys Rev Lett 2012; 108:072302. [PMID: 22401197 DOI: 10.1103/physrevlett.108.072302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Indexed: 05/31/2023]
Abstract
We report transverse momentum (p(T)≤15 GeV/c) spectra of π(±), K(±), p, p[over ¯], K(S)(0), and ρ(0) at midrapidity in p+p and Au+Au collisions at √S(NN)=200 GeV. Perturbative QCD calculations are consistent with π(±) spectra in p+p collisions but do not reproduce K and p(p[over ¯]) spectra. The observed decreasing antiparticle-to-particle ratios with increasing p(T) provide experimental evidence for varying quark and gluon jet contributions to high-p(T) hadron yields. The relative hadron abundances in Au+Au at p(T)≳8 GeV/c are measured to be similar to the p+p results, despite the expected Casimir effect for parton energy loss.
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Affiliation(s)
- G Agakishiev
- Joint Institute for Nuclear Research, Dubna, Russia
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Agakishiev G, Aggarwal MM, Ahammed Z, Alakhverdyants AV, Alekseev I, Alford J, Anderson BD, Anson CD, Arkhipkin D, Averichev GS, Balewski J, Barnby LS, Beavis DR, Behera NK, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Braidot E, Brandin AV, Bridgeman A, Brovko SG, Bruna E, Bueltmann S, Bunzarov I, Burton TP, Cai XZ, Caines H, Sánchez MCDLB, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Chen L, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung P, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Cui X, Leyva AD, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, de Souza RD, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du CM, Dunlop JC, Efimov LG, Elnimr M, Engelage J, Eppley G, Estienne M, Eun L, Evdokimov O, Fatemi R, Fedorisin J, Fersch RG, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gangadharan DR, Geurts F, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk OG, Grosnick D, Gupta A, Gupta S, Guryn W, Haag B, Hajkova O, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heinz M, Heppelmann S, Hirsch A, Hjort E, Hoffmann GW, Hofman DJ, Huang B, Huang HZ, Humanic TJ, Huo L, Igo G, Jacobs P, Jacobs WW, Jena C, Jin F, Jones PG, Joseph J, Judd EG, Kabana S, Kang K, Kapitan J, Kauder K, Ke HW, Keane D, Kechechyan A, Kettler D, Kikola DP, Kiryluk J, Kisiel A, Kizka V, Klein SR, Knospe AG, Koetke DD, Kollegger T, Konzer J, Koralt I, Koroleva L, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Krueger K, Krus M, Kumar L, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee JH, Leight W, LeVine MJ, Li C, Li L, Li N, Li W, Li X, Li X, Li Y, Li ZM, Lima LM, Lisa MA, Liu F, Liu H, Liu J, Ljubicic T, Llope WJ, Longacre RS, Lu Y, Lukashov EV, Luo X, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Manweiler R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mitrovski MK, Mohammed Y, Mohanty B, Mondal MM, Morozov B, Morozov DA, Munhoz MG, Mustafa MK, Naglis M, Nandi BK, Nayak TK, Nelson JM, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Oliveira RAN, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Pei H, Peitzmann T, Perkins C, Peryt W, Pile P, Planinic M, Ploskon MA, Pluta J, Plyku D, Poljak N, Porter J, Poskanzer AM, Potukuchi BVKS, Powell CB, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Qiu H, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ruan L, Rusnak J, Sahoo NR, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schaub J, Schmah AM, Schmitz N, Schuster TR, Seele J, Seger J, Selyuzhenkov I, Seyboth P, Shah N, Shahaliev E, Shao M, Sharma M, Shi SS, Shou QY, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Solanki D, Sorensen P, deSouza UG, Spinka HM, Srivastava B, Stanislaus TDS, Steadman SG, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, de Toledo AS, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Tlusty D, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Videbæk F, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Witzke W, Wu YF, Xiao Z, Xie W, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yang Y, Yepes P, Yip K, Yoo IK, Zawisza M, Zbroszczyk H, Zhan W, Zhang JB, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y. Strangeness enhancement in Cu-Cu and Au-Au collisions at √S(NN)=200 GeV. Phys Rev Lett 2012; 108:072301. [PMID: 22401196 DOI: 10.1103/physrevlett.108.072301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Indexed: 05/31/2023]
Abstract
We report new STAR measurements of midrapidity yields for the Λ, Λ[over ¯], K(S)(0), Ξ(-), Ξ[over ¯](+), Ω(-), Ω[over ¯](+) particles in Cu+Cu collisions at √S(NN)==200 GeV, and midrapidity yields for the Λ, Λ[over ¯], K(S)(0) particles in Au+Au at √S(NN)==200 GeV. We show that, at a given number of participating nucleons, the production of strange hadrons is higher in Cu+Cu collisions than in Au+Au collisions at the same center-of-mass energy. We find that aspects of the enhancement factors for all particles can be described by a parametrization based on the fraction of participants that undergo multiple collisions.
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Affiliation(s)
- G Agakishiev
- Joint Institute for Nuclear Research, Dubna, Russia
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Larson DJ, Lawrence D, Lefebvre W, Olson D, Prosa TJ, Reinhard DA, Ulfig RM, Clifton PH, Bunton JH, Lenz D, Olson JD, Renaud L, Martin I, Kelly TF. Toward atom probe tomography of microelectronic devices. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/326/1/012030] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Aggarwal MM, Ahammed Z, Alakhverdyants AV, Alekseev I, Alford J, Anderson BD, Anson CD, Arkhipkin D, Averichev GS, Balewski J, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Borowski W, Bouchet J, Braidot E, Brandin AV, Bridgeman A, Brovko SG, Bruna E, Bueltmann S, Bunzarov I, Burton TP, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung P, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Dash S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Derevschikov AA, Derradi de Souza R, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Dunlop JC, Dutta Mazumdar MR, Efimov LG, Elnimr M, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Evdokimov O, Fatemi R, Fedorisin J, Fersch RG, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gangadharan DR, Ganti MS, Geromitsos A, Geurts F, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Guertin SM, Gupta A, Guryn W, Haag B, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heinz M, Heppelmann S, Hirsch A, Hjort E, Hoffmann GW, Hofman DJ, Huang B, Huang HZ, Humanic TJ, Huo L, Igo G, Jacobs P, Jacobs WW, Jena C, Jin F, Joseph J, Judd EG, Kabana S, Kang K, Kapitan J, Kauder K, Keane D, Kechechyan A, Kettler D, Kikola DP, Kiryluk J, Kisiel A, Kizka V, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Konzer J, Koralt I, Koroleva L, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Krueger K, Krus M, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, LeVine MJ, Li C, Li L, Li N, Li W, Li X, Li X, Li Y, Li ZM, Lisa MA, Liu F, Liu H, Liu J, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Lukashov EV, Luo X, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Masui H, Matis HS, Matulenko YA, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mitrovski MK, Mohanty B, Mondal MM, Morozov B, Morozov DA, Munhoz MG, Naglis M, Nandi BK, Nayak TK, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Ohlson A, Okorokov V, Oldag EW, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perkins C, Peryt W, Phatak SC, Pile P, Planinic M, Ploskon MA, Pluta J, Plyku D, Poljak N, Poskanzer AM, Potukuchi BVKS, Powell CB, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Qiu H, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Ruan L, Sakai S, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sangaline E, Schambach J, Scharenberg RP, Schmah AM, Schmitz N, Schuster TR, Seele J, Seger J, Selyuzhenkov I, Seyboth P, Shahaliev E, Shao M, Sharma M, Shi SS, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Staszak D, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Trainor TA, Tram VN, Trentalange S, Tribble RE, Tsai OD, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Videbæk F, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu YF, Xie W, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yepes P, Yip K, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang JB, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao J, Zhong C, Zhou W, Zhu X, Zhu YH, Zoulkarneev R, Zoulkarneeva Y. Measurement of the parity-violating longitudinal single-spin asymmetry for W± boson production in polarized proton-proton collisions at sqrt[s] = 500 GeV. Phys Rev Lett 2011; 106:062002. [PMID: 21405460 DOI: 10.1103/physrevlett.106.062002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Indexed: 05/30/2023]
Abstract
We report the first measurement of the parity-violating single-spin asymmetries for midrapidity decay positrons and electrons from W+ and W- boson production in longitudinally polarized proton-proton collisions at sqrt[s] = 500 GeV by the STAR experiment at RHIC. The measured asymmetries, A(L)(W+) = -0.27 ± 0.10(stat.) ± 0.02(syst.) ± 0.03(norm.) and A(L)(W-) = 0.14 ± 0.19(stat.) ± 0.02(syst.) ± 0.01(norm.), are consistent with theory predictions, which are large and of opposite sign. These predictions are based on polarized quark and antiquark distribution functions constrained by polarized deep-inelastic scattering measurements.
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Lahousse SA, Hoenerhoff M, Collins J, Ton TVT, Masinde T, Olson D, Rebolloso Y, Koujitani T, Tomer KB, Hong HHL, Bucher J, Sills RC. Gene expression and mutation assessment provide clues of genetic and epigenetic mechanisms in liver tumors of oxazepam-exposed mice. Vet Pathol 2010; 48:875-84. [PMID: 21147764 DOI: 10.1177/0300985810390019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Liver tumors from a previous National Toxicology Program study were examined using global gene expression and mutation analysis to define the mechanisms of carcinogenesis in mice exposed to oxazepam. Five hepatocellular adenomas and 5 hepatocellular carcinomas from male B6C3F1 mice exposed to 5000 ppm oxazepam and 6 histologically normal liver samples from control animals were examined. One of the major findings in the study was upregulation of the Wnt/β-catenin signaling pathway. Genes that activate β-catenin, such as Sox4, were upregulated, whereas genes that inhibit Wnt signaling, such as APC and Crebbp, were downregulated. In addition, liver tumors from oxazepam-exposed mice displayed β-catenin mutations and increased protein expression of glutamine synthetase, a downstream target in the Wnt signaling pathway. Another important finding in this study was the altered expression of oxidative stress-related genes, specifically increased expression of cytochrome p450 genes, including Cyp1a2 and Cyp2b10, and decreased expression of genes that protect against oxidative stress, such as Sod2 and Cat. Increased oxidative stress was confirmed by measuring isoprostane expression using mass spectrometry. Furthermore, global gene expression identified altered expression of genes that are associated with epigenetic mechanisms of cancer. There was decreased expression of genes that are hypermethylated in human liver cancer, including tumor suppressors APC and Pten. Oxazepam-induced tumors also exhibited decreased expression of genes involved in DNA methylation (Crebbp, Dnmt3b) and histone modification (Sirt1). These data suggest that formation of hepatocellular adenomas and carcinomas in oxazepam-exposed mice involves alteration of the Wnt signaling pathway, oxidative stress, and potential epigenetic alterations.
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Affiliation(s)
- S A Lahousse
- Cellular and Molecular Pathology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
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Kiso WK, Brown JL, Siewerdt F, Schmitt DL, Olson D, Crichton EG, Pukazhenthi BS. Liquid Semen Storage in Elephants (Elephas maximus and Loxodonta africana): Species Differences and Storage Optimization. ACTA ACUST UNITED AC 2010; 32:420-31. [DOI: 10.2164/jandrol.110.011460] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Aggarwal MM, Ahammed Z, Alakhverdyants AV, Alekseev I, Alford J, Anderson BD, Anson D, Arkhipkin D, Averichev GS, Balewski J, Barnby LS, Baumgart S, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bonner BE, Bouchet J, Braidot E, Brandin AV, Bridgeman A, Bruna E, Bueltmann S, Bunzarov I, Burton TP, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung P, Clarke RF, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Das D, Dash S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Derevschikov AA, Derradi de Souza R, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Dunlop JC, Dutta Mazumdar MR, Efimov LG, Elhalhuli E, Elnimr M, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Evdokimov O, Fachini P, Fatemi R, Fedorisin J, Fersch RG, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Guertin SM, Gupta A, Guryn W, Haag B, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heinz M, Heppelmann S, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Huang B, Huang HZ, Humanic TJ, Huo L, Igo G, Jacobs P, Jacobs WW, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kauder K, Keane D, Kechechyan A, Kettler D, Kikola DP, Kiryluk J, Kisiel A, Kizka V, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Konzer J, Koralt I, Koroleva L, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Krueger K, Krus M, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, Lapointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, Levine MJ, Li C, Li L, Li N, Li W, Li X, Li X, Li Y, Li ZM, Lin G, Lin XY, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Lukashov EV, Luo X, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Masui H, Matis HS, Matulenko YA, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mitrovski MK, Mohanty B, Mondal MM, Morozov B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldag EW, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Pile P, Planinic M, Ploskon MA, Pluta J, Plyku D, Poljak N, Poskanzer AM, Potukuchi BVKS, Powell CB, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Qiu H, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Sahoo R, Sakai S, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sangaline E, Schambach J, Scharenberg RP, Schmitz N, Schuster TR, Seele J, Seger J, Selyuzhenkov I, Seyboth P, Shahaliev E, Shao M, Sharma M, Shi SS, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus TDS, Staszak D, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Trainor TA, Tram VN, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Videbaek F, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu YF, Xie W, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yepes P, Yip K, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang JB, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao J, Zhong C, Zhou J, Zhou W, Zhu X, Zhu YH, Zoulkarneev R, Zoulkarneeva Y. Measurement of the bottom quark contribution to nonphotonic electron production in p + p collisions at √s=200 GeV. Phys Rev Lett 2010; 105:202301. [PMID: 21231222 DOI: 10.1103/physrevlett.105.202301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Indexed: 05/30/2023]
Abstract
The contribution of B meson decays to nonphotonic electrons, which are mainly produced by the semileptonic decays of heavy-flavor mesons, in p + p collisions at √s=200 GeV has been measured using azimuthal correlations between nonphotonic electrons and hadrons. The extracted B decay contribution is approximately 50% at a transverse momentum of pT≥5 GeV/c. These measurements constrain the nuclear modification factor for electrons from B and D meson decays. The result indicates that B meson production in heavy ion collisions is also suppressed at high pT.
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Aggarwal MM, Ahammed Z, Alakhverdyants AV, Alekseev I, Alford J, Anderson BD, Arkhipkin D, Averichev GS, Balewski J, Barnby LS, Baumgart S, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bonner BE, Bouchet J, Braidot E, Brandin AV, Bridgeman A, Bruna E, Bueltmann S, Bunzarov I, Burton TP, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung P, Clarke RF, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Das D, Dash S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Derevschikov AA, Derradi de Souza R, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Dunlop JC, Dutta Mazumdar MR, Efimov LG, Elhalhuli E, Elnimr M, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Evdokimov O, Fachini P, Fatemi R, Fedorisin J, Fersch RG, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Guertin SM, Gupta A, Gupta N, Guryn W, Haag B, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heinz M, Heppelmann S, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Huang B, Huang HZ, Humanic TJ, Huo L, Igo G, Jacobs P, Jacobs WW, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kauder K, Keane D, Kechechyan A, Kettler D, Kikola DP, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Konzer J, Koralt I, Koroleva L, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Krueger K, Krus M, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, LeVine MJ, Li C, Li L, Li N, Li W, Li X, Li X, Li Y, Li ZM, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Lukashov EV, Luo X, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Masui H, Matis HS, Matulenko YA, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mitrovski MK, Mohanty B, Mondal MM, Morozov B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldag EW, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Pile P, Planinic M, Ploskon MA, Pluta J, Plyku D, Poljak N, Poskanzer AM, Potukuchi BVKS, Powell CB, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Qiu H, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Sahoo R, Sakai S, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sangaline E, Schambach J, Scharenberg RP, Schmitz N, Schuster TR, Seele J, Seger J, Selyuzhenkov I, Seyboth P, Shahaliev E, Shao M, Sharma M, Shi SS, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus TDS, Staszak D, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Tram VN, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Videbaek F, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu YF, Xie W, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yepes P, Yip K, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang JB, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao J, Zhong C, Zhou J, Zhou W, Zhu X, Zhu YH, Zoulkarneev R, Zoulkarneeva Y. Higher moments of net proton multiplicity distributions at RHIC. Phys Rev Lett 2010; 105:022302. [PMID: 20867702 DOI: 10.1103/physrevlett.105.022302] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Indexed: 05/29/2023]
Abstract
We report the first measurements of the kurtosis (κ), skewness (S), and variance (σ2) of net-proton multiplicity (Np-Np) distributions at midrapidity for Au+Au collisions at square root of s(NN)=19.6, 62.4, and 200 GeV corresponding to baryon chemical potentials (μB) between 200 and 20 MeV. Our measurements of the products κσ2 and Sσ, which can be related to theoretical calculations sensitive to baryon number susceptibilities and long-range correlations, are constant as functions of collision centrality. We compare these products with results from lattice QCD and various models without a critical point and study the square root of s(NN) dependence of κσ2. From the measurements at the three beam energies, we find no evidence for a critical point in the QCD phase diagram for μB below 200 MeV.
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Abelev BI, Aggarwal MM, Ahammed Z, Alakhverdyants AV, Anderson BD, Arkhipkin D, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baumgart S, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bnzarov I, Bonner BE, Bouchet J, Braidot E, Brandin AV, Bridgeman A, Bruna E, Bueltmann S, Burton TP, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung P, Clarke RF, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Das D, Dash S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, DePhillips M, Derevschikov AA, Derradi de Souza R, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Dunlop JC, Dutta Mazumdar MR, Efimov LG, Elhalhuli E, Elnimr M, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Fersch RG, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heinz M, Heppelmann S, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Humanic TJ, Huo L, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kauder K, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kikola DP, Kiryluk J, Kisiel A, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Konzer J, Kopytine M, Koralt I, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Krus M, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, LeVine MJ, Li C, Li L, Li N, Li W, Li X, Li X, Li Y, Li Z, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Masui H, Matis HS, Matulenko YA, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mitrovski MK, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Pile P, Planinic M, Ploskon MA, Pluta J, Plyku D, Poljak N, Poskanzer AM, Potukuchi BVKS, Powell CB, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Rehberg JM, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Sahoo R, Sakai S, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sangaline E, Schambach J, Scharenberg RP, Schmitz N, Schuster TR, Seele J, Seger J, Selyuzhenkov I, Seyboth P, Shahaliev E, Shao M, Sharma M, Shi SS, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus TDS, Staszak D, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Tram VN, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, van Leeuwen M, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Videbæk F, Viyogi YP, Vokal S, Wada M, Walker M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wingfield E, Wissink SW, Witt R, Wu Y, Xie W, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yepes P, Yip K, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao J, Zhong C, Zhou J, Zhou W, Zhu X, Zhu YH, Zoulkarneev R, Zoulkarneeva Y. Three-particle coincidence of the long range pseudorapidity correlation in high energy nucleus-nucleus collisions. Phys Rev Lett 2010; 105:022301. [PMID: 20867701 DOI: 10.1103/physrevlett.105.022301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Indexed: 05/29/2023]
Abstract
We report the first three-particle coincidence measurement in pseudorapidity (Δη) between a high transverse momentum (p⊥) trigger particle and two lower p⊥ associated particles within azimuth |Δϕ|<0.7 in square root of s(NN)=200 GeV d+Au and Au+Au collisions. Charge ordering properties are exploited to separate the jetlike component and the ridge (long range Δη correlation). The results indicate that the correlation of ridge particles are uniform not only with respect to the trigger particle but also between themselves event by event in our measured Δη. In addition, the production of the ridge appears to be uncorrelated to the presence of the narrow jetlike component.
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Affiliation(s)
- B I Abelev
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
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Abelev BI, Aggarwal MM, Ahammed Z, Alakhverdyants AV, Alekseev I, Anderson BD, Arkhipkin D, Averichev GS, Balewski J, Barnby LS, Baumgart S, Beavis DR, Bellwied R, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bonner BE, Bouchet J, Braidot E, Brandin AV, Bridgeman A, Bruna E, Bueltmann S, Bunzarov I, Burton TP, Cai XZ, Caines H, Calderon M, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung P, Clarke RF, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Das D, Dash S, Leyva AD, De Silva LC, Debbe RR, Dedovich TG, DePhillips M, Derevschikov AA, Derradi de Souza R, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Dunlop JC, Dutta Mazumdar MR, Efimov LG, Elhalhuli E, Elnimr M, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Evdokimov O, Fachini P, Fatemi R, Fedorisin J, Fersch RG, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Gupta A, Gupta N, Guryn W, Haag B, Hamed A, Han LX, Harris JW, Hays-Wehle JP, Heinz M, Heppelmann S, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang B, Huang HZ, Humanic TJ, Huo L, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kauder K, Keane D, Kechechyan A, Kettler D, Kikola DP, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Konzer J, Kopytine M, Koralt I, Koroleva L, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Krueger K, Krus M, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, Levine MJ, Li C, Li L, Li N, Li W, Li X, Li Y, Li Z, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Luo X, Ma GL, Ma YG, Mahapatra DP, Majka R, Mal OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Masui H, Matis HS, Matulenko YA, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mitrovski MK, Mohanty B, Mondal MM, Morozov B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Pile P, Planinic M, Ploskon MA, Pluta J, Plyku D, Poljak N, Poskanzer AM, Potukuchi BVKS, Powell CB, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Qiu H, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Sahoo R, Sakai S, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sangaline E, Schambach J, Scharenberg RP, Schmitz N, Schuster TR, Seele J, Seger J, Selyuzhenkov I, Seyboth P, Shahaliev E, Shao M, Sharma M, Shi SS, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus TDS, Staszak D, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Trainor TA, Tram VN, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Videbaek F, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wingfield E, Wissink SW, Witt R, Wu Y, Xie W, Xu H, Xu N, Xu QH, Xu W, Xu Y, Xu Z, Xue L, Yang Y, Yepes P, Yip K, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang J, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao J, Zhong C, Zhou J, Zhou W, Zhu X, Zhu YH, Zoulkarneev R, Zoulkarneeva Y. Observation of an Antimatter Hypernucleus. Science 2010; 328:58-62. [DOI: 10.1126/science.1183980] [Citation(s) in RCA: 209] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Abelev BI, Aggarwal MM, Ahammed Z, Alakhverdyants AV, Anderson BD, Arkhipkin D, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bnzarov I, Bonner BE, Bouchet J, Braidot E, Brandin AV, Bridgeman A, Bruna E, Bueltmann S, Burton TP, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung P, Clarke RF, Codrington MJM, Corliss R, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, De Silva LC, Dedovich TG, DePhillips M, Derevschikov AA, Derradi de Souza R, Didenko L, Djawotho P, Dzhordzhadze V, Dogra SM, Dong X, Drachenberg JL, Draper JE, Dunlop JC, Dutta Mazumdar MR, Efimov LG, Elhalhuli E, Elnimr M, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, Heinz M, Heppelmann S, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Humanic TJ, Huo L, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kauder K, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kikola DP, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Konzer J, Kopytine M, Koralt I, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Krus M, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, LeVine MJ, Li C, Li N, Li Y, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Masui H, Matis HS, Matulenko YA, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Pile P, Planinic M, Ploskon MA, Pluta J, Plyku D, Poljak N, Poskanzer AM, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakai S, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Schambach J, Scharenberg RP, Schmitz N, Seele J, Seger J, Selyuzhenkov I, Semertzidis Y, Seyboth P, Shahaliev E, Shao M, Sharma M, Shi SS, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stanislaus TDS, Staszak D, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Tram VN, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Videbaek F, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang H, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu Y, Xie W, Xu N, Xu QH, Xu Y, Xu Z, Yang Y, Yepes P, Yip K, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zhu X, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. Azimuthal charged-particle correlations and possible local strong parity violation. Phys Rev Lett 2009; 103:251601. [PMID: 20366248 DOI: 10.1103/physrevlett.103.251601] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Indexed: 05/29/2023]
Abstract
Parity-odd domains, corresponding to nontrivial topological solutions of the QCD vacuum, might be created during relativistic heavy-ion collisions. These domains are predicted to lead to charge separation of quarks along the system's orbital momentum axis. We investigate a three-particle azimuthal correlator which is a P even observable, but directly sensitive to the charge separation effect. We report measurements of charged hadrons near center-of-mass rapidity with this observable in Au + Au and Cu + Cu collisions at square root of s(NN) = 200 GeV using the STAR detector. A signal consistent with several expectations from the theory is detected. We discuss possible contributions from other effects that are not related to parity violation.
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Affiliation(s)
- B I Abelev
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bruna E, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Clarke RF, Codrington MJM, Corliss R, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, De Silva LC, Dedovich TG, DePhillips M, Derevschikov AA, Derradi de Souza R, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunlop JC, Dutta Mazumdar MR, Edwards WR, Efimov LG, Elhalhuli E, Elnimr M, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gaillard L, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Humanic TJ, Huo L, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kikola DP, Kiryluk J, Kisiel A, Knospe AG, Kocoloski A, Koetke DD, Kopytine M, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Krus M, Kuhn C, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, Levine MJ, Li N, Li C, Li Y, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Poskanzer AM, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Raniwala R, Raniwala S, Redwine R, Reed R, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi SS, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, Vander Molen AM, Vanfossen JA, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu Y, Xie W, Xu N, Xu QH, Xu Y, Xu Z, Yang Y, Yepes P, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. Growth of long range forward-backward multiplicity correlations with centrality in Au + Au collisions at square root of sNN = 200 GeV. Phys Rev Lett 2009; 103:172301. [PMID: 19905749 DOI: 10.1103/physrevlett.103.172301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2009] [Indexed: 05/28/2023]
Abstract
Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au + Au and p + p collisions at square root of s(NN) = 200 GeV. Strong short- and long-range correlations (LRC) are seen in central Au + Au collisions. The magnitude of these correlations decrease with decreasing centrality until only short-range correlations are observed in peripheral Au + Au collisions. Both the dual parton model (DPM) and the color glass condensate (CGC) predict the existence of the long-range correlations. In the DPM, the fluctuation in the number of elementary (parton) inelastic collisions produces the LRC. In the CGC, longitudinal color flux tubes generate the LRC. The data are in qualitative agreement with the predictions of the DPM and indicate the presence of multiple parton interactions.
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Affiliation(s)
- B I Abelev
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bruna E, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, de la Barca Sánchez MC, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Clarke RF, Codrington MJM, Corliss R, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Das S, Dash S, Daugherity M, De Silva LC, Dedovich TG, DePhillips M, Derevschikov AA, de Souza RD, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Dunlop JC, Mazumdar MRD, Edwards WR, Efimov LG, Elhalhuli E, Elnimr M, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gaillard L, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Humanic TJ, Huo L, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kikola DP, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kopytine M, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Krus M, Kuhn C, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, LeVine MJ, Li C, Li N, Li Y, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McDonald D, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Pile P, Planinic M, Pluta J, Plyku D, Poljak N, Poskanzer AM, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Pujahari PR, Putschke J, Raniwala R, Raniwala S, Redwine R, Reed R, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi SS, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, de Toledo AS, Takahashi J, Tang AH, Tang Z, Tarini LH, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, Molen AMV, Vanfossen JA, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Walker M, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu Y, Xie W, Xu N, Xu QH, Xu Y, Xu Z, Yang P, Yepes P, Yip K, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. K/pi Fluctuations at relativistic energies. Phys Rev Lett 2009; 103:092301. [PMID: 19792791 DOI: 10.1103/physrevlett.103.092301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Indexed: 05/28/2023]
Abstract
We report K/pi fluctuations from Au + Au collisions at sqrt[s(NN)]= 19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. K/pi fluctuations in central collisions show little dependence on incident energy and are on the same order as those from NA49 at the Super Proton Synchrotron in central Pb + Pb collisions at sqrt[s(NN)]=12.3 and 17.3 GeV. We report results for the collision centrality dependence of K/pi fluctuations and results for charge-separated fluctuations. We observe that the K/pi fluctuations scale with the charged particle multiplicity density.
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Affiliation(s)
- B I Abelev
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betancourt MJ, Betts RR, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bruna E, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, Sánchez MCDLB, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Clarke RF, Codrington MJM, Corliss R, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, Silva LCD, Dedovich TG, DePhillips M, Derevschikov AA, de Souza RD, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunlop JC, Mazumdar MRD, Edwards WR, Efimov LG, Elhalhuli E, Elnimr M, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gaillard L, Gangadharan DR, Ganti MS, Garcia-Solis EJ, Geromitsos A, Geurts F, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jena C, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kikola DP, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kopytine M, Korsch W, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Krus M, Kuhn C, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, LaPointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Lee JH, Leight W, LeVine MJ, Li N, Li C, Li Y, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Poskanzer AM, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Putschke J, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi SS, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, de Toledo AS, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Trainor TA, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, Molen AMV, Vanfossen JA, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Waggoner WT, Walker M, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb G, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu Y, Xie W, Xu N, Xu QH, Xu Y, Xu Z, Yang Y, Yepes P, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang S, Zhang WM, Zhang XP, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. Measurement ofD*mesons in jets fromp+pcollisions ats=200 GeV. Int J Clin Exp Med 2009. [DOI: 10.1103/physrevd.79.112006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betancourt MJ, Betts RR, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bruna E, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung SU, Clarke RF, Codrington MJM, Coffin JP, Corliss R, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, De Silva C, Dedovich TG, Dephillips M, Derevschikov AA, Derradi de Souza R, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunlop JC, Dutta Mazumdar MR, Edwards WR, Efimov LG, Elhalhuli E, Elnimr M, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gaillard L, Gangadharan DR, Ganti MS, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jin F, Jones CL, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kikola DP, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kopytine M, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Krus M, Kuhn C, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, Lapointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Leight W, Levine MJ, Li C, Li N, Li Y, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McShane TS, Meschanin A, Milner R, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Nepali C, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Poskanzer AM, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Putschke J, Raniwala R, Raniwala S, Ray RL, Redwine R, Reed R, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Rykov V, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi SS, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Trainor TA, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, Vander Molen AM, Vanfossen JA, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Waggoner WT, Walker M, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu Y, Xie W, Xu N, Xu QH, Xu Y, Xu Z, Yepes P, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang H, Zhang S, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. Observation of two-source interference in the photoproduction reaction AuAu --> AuAurho0. Phys Rev Lett 2009; 102:112301. [PMID: 19392193 DOI: 10.1103/physrevlett.102.112301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Indexed: 05/27/2023]
Abstract
In ultraperipheral relativistic heavy-ion collisions, a photon from the electromagnetic field of one nucleus can fluctuate to a quark-antiquark pair and scatter from the other nucleus, emerging as a rho{0}. The rho{0} production occurs in two well-separated (median impact parameters of 20 and 40 F for the cases considered here) nuclei, so the system forms a two-source interferometer. At low transverse momenta, the two amplitudes interfere destructively, suppressing rho{0} production. Since the rho{0} decays before the production amplitudes from the two sources can overlap, the two-pion system can only be described with an entangled nonlocal wave function, and is thus an example of the Einstein-Podolsky-Rosen paradox. We observe this suppression in 200 GeV per nucleon-pair gold-gold collisions. The interference is 87%+/-5%(stat.)+/-8%(syst.) of the expected level. This translates into a limit on decoherence due to wave function collapse or other factors of 23% at the 90% confidence level.
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Affiliation(s)
- B I Abelev
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betts RR, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bruna E, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung SU, Clarke RF, Codrington MJM, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, De Silva C, de Moura MM, Dedovich TG, Dephillips M, Derevschikov AA, de Souza RD, Didenko L, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunlop JC, Dutta Mazumdar MR, Edwards WR, Efimov LG, Elhalhuli E, Elnimr M, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gaillard L, Gangadharan DR, Ganti MS, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jin F, Jones PG, Joseph J, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kopytine M, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Krus M, Kuhn C, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, Lapointe S, Lauret J, Lebedev A, Lednicky R, Lee CH, Levine MJ, Li C, Li Y, Lin G, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma YG, Mahapatra DP, Majka R, Mall OI, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McShane TS, Meschanin A, Millane J, Miller ML, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Molnar L, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Nepali C, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Page BS, Pal SK, Pandit Y, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Poskanzer AM, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Putschke J, Raniwala R, Raniwala S, Ray RL, Reed R, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Rykov V, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi SS, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tlusty D, Tokarev M, Trainor TA, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van Leeuwen M, Vander Molen AM, Vanfossen JA, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Waggoner WT, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu Y, Xu N, Xu QH, Xu Y, Xu Z, Yepes P, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang H, Zhang S, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. Indications of conical emission of charged hadrons at the BNL relativistic heavy ion collider. Phys Rev Lett 2009; 102:052302. [PMID: 19257508 DOI: 10.1103/physrevlett.102.052302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Indexed: 05/27/2023]
Abstract
Three-particle azimuthal correlation measurements with a high transverse momentum trigger particle are reported for pp, d+Au, and Au+Au collisions at sqrt[s_{NN}]=200 GeV by the STAR experiment. Dijet structures are observed in pp, d+Au and peripheral Au+Au collisions. An additional structure is observed in central Au+Au data, signaling conical emission of correlated charged hadrons. The conical emission angle is found to be theta=1.37+/-0.02(stat)-0.07+0.06(syst), independent of p_{ perpendicular}.
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Affiliation(s)
- B I Abelev
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betts RR, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Biritz B, Bland LC, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Cendejas R, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung SU, Clarke RF, Codrington MJM, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, de Moura MM, Dedovich TG, Dephillips M, Derevschikov AA, Derradi de Souza R, Didenko L, Dietel T, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunlop JC, Dutta Mazumdar MR, Edwards WR, Efimov LG, Elhalhuli E, Elnimr M, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Gagliardi CA, Gaillard L, Gangadharan DR, Ganti MS, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Heppelmann S, Hippolyte B, Hirsch A, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Huang HZ, Hughes EW, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jin F, Jones PG, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kumar A, Kumar L, Kurnadi P, Lamont MAC, Landgraf JM, Lange S, Lapointe S, Laue F, Lauret J, Lebedev A, Lednicky R, Lee CH, Levine MJ, Li C, Li Y, Lin G, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma JG, Ma YG, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McShane TS, Meschanin A, Millane J, Miller ML, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Nepali C, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Pal SK, Panebratsev Y, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Porile N, Poskanzer AM, Potekhin M, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Putschke J, Qattan IA, Raniwala R, Raniwala S, Ray RL, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Rykov V, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi SS, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Y, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tokarev M, Trainor TA, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van der Kolk N, van Leeuwen M, Vander Molen AM, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Waggoner WT, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu J, Wu Y, Xu N, Xu QH, Xu Y, Xu Z, Yang YY, Yepes P, Yoo IK, Yue Q, Zawisza M, Zbroszczyk H, Zhan W, Zhang H, Zhang S, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. System-size independence of directed flow measured at the BNL relativistic heavy-ion collider. Phys Rev Lett 2008; 101:252301. [PMID: 19113699 DOI: 10.1103/physrevlett.101.252301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Indexed: 05/27/2023]
Abstract
We measure directed flow (v_{1}) for charged particles in Au+Au and Cu+Cu collisions at sqrt[s_{NN}]=200 and 62.4 GeV, as a function of pseudorapidity (eta), transverse momentum (p_{t}), and collision centrality, based on data from the STAR experiment. We find that the directed flow depends on the incident energy but, contrary to all available model implementations, not on the size of the colliding system at a given centrality. We extend the validity of the limiting fragmentation concept to v_{1} in different collision systems, and investigate possible explanations for the observed sign change in v_{1}(p_{t}).
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Affiliation(s)
- B I Abelev
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Beavis DR, Bellwied R, Benedosso F, Betts RR, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Blyth SL, Bombara M, Bonner BE, Botje M, Bouchet J, Braidot E, Brandin AV, Bueltmann S, Burton TP, Bystersky M, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Choi KE, Christie W, Chung SU, Clarke RF, Codrington MJM, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, de Moura MM, Dedovich TG, DePhillips M, Derevschikov AA, Derradi de Souza R, Didenko L, Dietel T, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunlop JC, Dutta Mazumdar MR, Edwards WR, Efimov LG, Elhalhuli E, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Eun L, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi CA, Gaillard L, Ganti MS, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov YN, Gordon A, Gos H, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Guryn W, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Henry TW, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Horner MJ, Huang HZ, Hughes EW, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jin F, Jones PG, Judd EG, Kabana S, Kajimoto K, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kiryluk J, Kisiel A, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kowalik KL, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kumar A, Kurnadi P, Lamont MAC, Landgraf JM, Langdon J, Lange S, LaPointe S, Laue F, Lauret J, Lebedev A, Lednicky R, Lee CH, LeVine MJ, Li C, Li Q, Li Y, Lin G, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma JG, Ma YG, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Matis HS, Matulenko YA, McShane TS, Meschanin A, Millane J, Miller C, Miller ML, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Nepali C, Netrakanti PK, Ng MJ, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okada H, Okorokov V, Olson D, Pachr M, Pal SK, Panebratsev Y, Pavlinov AI, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Porile N, Poskanzer AM, Potekhin M, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Putschke J, Qattan IA, Rakness G, Raniwala R, Raniwala S, Ray RL, Relyea D, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Rykov V, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shi XH, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Tatarowicz J, Thein D, Thomas JH, Tian J, Timmins AR, Timoshenko S, Tokarev M, Trainor TA, Tram VN, Trattner AL, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van der Kolk N, van Leeuwen M, Vander Molen AM, Varma R, Vasconcelos GMS, Vasilevski IM, Vasiliev AN, Vernet R, Videbaek F, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Waggoner WT, Wang F, Wang G, Wang JS, Wang Q, Wang X, Wang XL, Wang Y, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu J, Wu Y, Xu N, Xu QH, Xu Z, Yepes P, Yoo IK, Yue Q, Zachariou N, Zawisza M, Zhan W, Zhang H, Zhang S, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zuo JX. Forward neutral-pion transverse single-spin asymmetries in p + p collisions at sqrt[s] = 200 GeV. Phys Rev Lett 2008; 101:222001. [PMID: 19113478 DOI: 10.1103/physrevlett.101.222001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2008] [Indexed: 05/27/2023]
Abstract
We report precision measurements of the Feynman x (xF) dependence, and first measurements of the transverse momentum (pT) dependence, of transverse single-spin asymmetries for the production of pi0 mesons from polarized proton collisions at sqrt[s] = 200 GeV. The xF dependence of the results is in fair agreement with perturbative QCD model calculations that identify orbital motion of quarks and gluons within the proton as the origin of the spin effects. Results for the pT dependence at fixed xF are not consistent with these same perturbative QCD-based calculations.
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Affiliation(s)
- B I Abelev
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Belaga VV, Bellingeri-Laurikainen A, Bellwied R, Benedosso F, Betts RR, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Blyth SL, Bombara M, Bonner BE, Botje M, Bouchet J, Brandin AV, Burton TP, Bystersky M, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Christie W, Chung SU, Clarke RF, Codrington MJM, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, de Moura MM, Dedovich TG, Dephillips M, Derevschikov AA, Didenko L, Dietel T, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunin VB, Dunlop JC, Dutta Mazumdar MR, Edwards WR, Efimov LG, Elhalhuli E, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi CA, Gaillard L, Ganti MS, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov YN, Gos H, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Henry TW, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Horner MJ, Huang HZ, Hughes EW, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jones PG, Judd EG, Kabana S, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kiryluk J, Kisiel A, Kislov EM, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kowalik KL, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kurnadi P, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lapointe S, Laue F, Lauret J, Lebedev A, Lednicky R, Lee CH, Lehocka S, Levine MJ, Li C, Li Q, Li Y, Lin G, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma JG, Ma YG, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Matis HS, Matulenko YA, McShane TS, Meschanin A, Millane J, Miller ML, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Nepali C, Netrakanti PK, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Olson D, Pachr M, Pal SK, Panebratsev Y, Pavlinov AI, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Porile N, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Putschke J, Qattan IA, Raniwala R, Raniwala S, Ray RL, Relyea D, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shen WQ, Shimanskiy SS, Sichtermann EP, Simon F, Singaraju RN, Skoby MJ, Smirnov N, Snellings R, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tarnowsky T, Thomas JH, Timmins AR, Timoshenko S, Tokarev M, Trainor TA, Tram VN, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van der Kolk N, van Leeuwen M, Vander Molen AM, Varma R, Vasilevski IM, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Waggoner WT, Wang F, Wang G, Wang JS, Wang XL, Wang Y, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu J, Wu Y, Xu N, Xu QH, Xu Z, Yepes P, Yoo IK, Yue Q, Yurevich VI, Zawisza M, Zhan W, Zhang H, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN, Zuo JX. Longitudinal double-spin asymmetry for inclusive jet production in p[over -->] + p[over -->] collisions at sqrt[s]=200 GeV. Phys Rev Lett 2008; 100:232003. [PMID: 18643488 DOI: 10.1103/physrevlett.100.232003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2007] [Indexed: 05/26/2023]
Abstract
We report a new STAR measurement of the longitudinal double-spin asymmetry A(LL) for inclusive jet production at midrapidity in polarized p + p collisions at a center-of-mass energy of sqrt[s]=200 GeV. The data, which cover jet transverse momenta 5<p(T)<30 GeV/c, are substantially more precise than previous measurements. They provide significant new constraints on the gluon spin contribution to the nucleon spin through the comparison to predictions derived from one global fit to polarized deep-inelastic scattering measurements.
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Affiliation(s)
- B I Abelev
- University of Illinois at Chicago, Chicago, IL 60607, USA
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Belaga VV, Bellingeri-Laurikainen A, Bellwied R, Benedosso F, Betts RR, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Blyth SL, Bombara M, Bonner BE, Botje M, Bouchet J, Brandin AV, Burton TP, Bystersky M, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Cervantes MC, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Christie W, Chung SU, Clarke RF, Codrington MJM, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, de Moura MM, Dedovich TG, Dephillips M, Derevschikov AA, Didenko L, Dietel T, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunin VB, Dunlop JC, Dutta Mazumdar MR, Edwards WR, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi CA, Gaillard L, Ganti MS, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov YN, Gos H, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta A, Gupta N, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Henry TW, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Horner MJ, Huang HZ, Hughes EW, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jones PG, Judd EG, Kabana S, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kiryluk J, Kisiel A, Kislov EM, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kowalik KL, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kurnadi P, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lapointe S, Laue F, Lauret J, Lebedev A, Lednicky R, Lee CH, Lehocka S, Levine MJ, Li C, Li Q, Li Y, Lin G, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma JG, Ma YG, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Matis HS, Matulenko YA, McShane TS, Meschanin A, Millane J, Miller ML, Minaev NG, Mioduszewski S, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Nepali C, Netrakanti PK, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Olson D, Pachr M, Pal SK, Panebratsev Y, Pavlinov AI, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Porile N, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Pruthi NK, Putschke J, Qattan IA, Raniwala R, Raniwala S, Ray RL, Relyea D, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shen WQ, Shimanskiy SS, Sichtermann EP, Simon F, Singaraju RN, Smirnov N, Snellings R, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Stevens J, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tarnowsky T, Thomas JH, Timmins AR, Timoshenko S, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van der Kolk N, van Leeuwen M, Vander Molen AM, Varma R, Vasilevski IM, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Wada M, Waggoner WT, Wang F, Wang G, Wang JS, Wang XL, Wang Y, Webb JC, Westfall GD, Whitten C, Wieman H, Wissink SW, Witt R, Wu J, Wu Y, Xu N, Xu QH, Xu Z, Yepes P, Yoo IK, Yue Q, Yurevich VI, Zawisza M, Zhan W, Zhang H, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN, Zuo JX. Measurement of transverse single-spin asymmetries for Dijet production in proton-proton collisions at sqrt[s]=200 GeV. Phys Rev Lett 2007; 99:142003. [PMID: 17930662 DOI: 10.1103/physrevlett.99.142003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2007] [Indexed: 05/25/2023]
Abstract
We report the first measurement of the opening angle distribution between pairs of jets produced in high-energy collisions of transversely polarized protons. The measurement probes (Sivers) correlations between the transverse spin orientation of a proton and the transverse momentum directions of its partons. With both beams polarized, the wide pseudorapidity (-1< or = eta < or = +2) coverage for jets permits separation of Sivers functions for the valence and sea regions. The resulting asymmetries are all consistent with zero and considerably smaller than Sivers effects observed in semi-inclusive deep inelastic scattering. We discuss theoretical attempts to reconcile the new results with the sizable transverse spin effects seen in semi-inclusive deep inelastic scattering and forward hadron production in pp collisions.
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Affiliation(s)
- B I Abelev
- University of Illinois at Chicago, Chicago, IL 60607, USA
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Belaga VV, Bellingeri-Laurikainen A, Bellwied R, Benedosso F, Betts RR, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Blyth SL, Bombara M, Bonner BE, Botje M, Bouchet J, Brandin AV, Bravar A, Burton TP, Bystersky M, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Christie W, Chung SU, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, de Moura MM, Dedovich TG, DePhillips M, Derevschikov AA, Didenko L, Dietel T, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunin VB, Dunlop JC, Dutta Mazumdar MR, Eckardt V, Edwards WR, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi CA, Gaillard L, Ganti MS, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov YG, Gos H, Grebenyuk O, Grosnick D, Grube B, Guertin SM, Guimaraes KSFF, Gupta N, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Henry TW, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman DJ, Hollis RS, Horner MJ, Huang HZ, Hughes EW, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jia F, Jones PG, Judd EG, Kabana S, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kim BC, Kiryluk J, Kisiel A, Kislov EM, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kowalik KL, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kurnadi P, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, LaPointe S, Laue F, Lauret J, Lebedev A, Lednicky R, Lee CH, Lehocka S, LeVine MJ, Li C, Li Q, Li Y, Lin G, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma JG, Ma YG, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Matis HS, Matulenko YA, McClain CJ, McShane TS, Melnick Y, Meschanin A, Millane J, Miller ML, Minaev NG, Mioduszewski S, Mironov C, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Nepali C, Netrakanti PK, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Pachr M, Pal SK, Panebratsev Y, Pavlinov AI, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Porile N, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Qattan IA, Raniwala R, Raniwala S, Ray RL, Relyea D, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shen WQ, Shimanskiy SS, Sichtermann EP, Simon F, Singaraju RN, Smirnov N, Snellings R, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tarnowsky T, Thomas JH, Timmins AR, Timoshenko S, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van der Kolk N, van Leeuwen M, Vander Molen AM, Varma R, Vasilevski IM, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Waggoner WT, Wang F, Wang G, Wang JS, Wang XL, Wang Y, Watson JW, Webb JC, Westfall GD, Wetzler A, Whitten C, Wieman H, Wissink SW, Witt R, Wu J, Wu Y, Xu N, Xu QH, Xu Z, Yepes P, Yoo IK, Yue Q, Yurevich VI, Zhan W, Zhang H, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN, Zuo JX. Partonic Flow and phi-Meson production in Au+Au collisions at sqrt radical sNN = 200 GeV. Phys Rev Lett 2007; 99:112301. [PMID: 17930430 DOI: 10.1103/physrevlett.99.112301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2007] [Indexed: 05/25/2023]
Abstract
We present first measurements of the phi-meson elliptic flow (v2(pT)) and high-statistics pT distributions for different centralities from radical sNN=200 GeV Au+Au collisions at RHIC. In minimum bias collisions the v2 of the phi meson is consistent with the trend observed for mesons. The ratio of the yields of the Omega to those of the phi as a function of transverse momentum is consistent with a model based on the recombination of thermal s quarks up to pT approximately 4 GeV/c, but disagrees at higher momenta. The nuclear modification factor (R CP) of phi follows the trend observed in the K S 0 mesons rather than in Lambda baryons, supporting baryon-meson scaling. These data are consistent with phi mesons in central Au+Au collisions being created via coalescence of thermalized s quarks and the formation of a hot and dense matter with partonic collectivity at RHIC.
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Affiliation(s)
- B I Abelev
- University of Illinois at Chicago, Chicago, Illinois 60607, USA
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Anderson BD, Goldberg J, Adler J, Covington L, Olson D, Gordon B, Reaman G, Everett J, Smith M, Christian M. The NCI pediatric central institutional review board (PedCIRB) initiative: Progress and impact. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.6632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
6632 NCI has developed a central IRB (PedCIRB) to review NCI-sponsored pediatric clinical trials conducted by the Children's Oncology Group (COG). COG comprises ∼200 U.S. medical institutions and protocol activation traditionally requires separate protocol review by each local IRB (LIRB) and, subsequently, a review of each protocol amendment and significant adverse event. The PedCIRB model seeks to increase patient protection by improving the expertise of protocol reviewers and making their review available to all PedCIRB participating institutions. The PedCIRB consists of experts in pediatric oncology, pediatric medicine, nursing, pharmacy, bioethics, biostatistics, as well as patient advocates and childhood cancer survivors. The PedCIRB model also eliminates redundant reviews, reduces administrative burdens on local COG investigators and LIRBs, and can accelerate the pace of local protocol activation, thus increasing the availability of clinical trials to children with cancer. The PedCIRB conducts a full board protocol review that is available via a confidential website to participating LIRBs. LIRBs can choose to perform a facilitated review, using PedCIRB materials, that focuses on local concerns, rather than a full LIRB protocol review. If the LIRB accepts the PedCIRB review, the PedCIRB becomes the IRB of record for that protocol and takes responsibility for the review of subsequent protocol amendments, adverse events and continuing reviews. Since starting in November 2004, the PedCIRB has reviewed 59 protocols. Initial reviews resulted in 44 approvals pending modification and 15 protocols being tabled for further information. The time from protocol submission to final approval by the PedCIRB has ranged from 3 to 28 weeks with an average time of 16.9 weeks during year one and 12.7 weeks during year two of the project. As of November 2006, 117 of a possible 197 U.S. COG institutions (59%) have signed on to the PedCIRB initiative and 70% of the participating institutions have conducted facilitated reviews (total 750) for the 30 protocols available on the PedCIRB website. The PedCIRB's influence on protocol development and patient accrual timelines will be discussed. No significant financial relationships to disclose.
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Affiliation(s)
- B. D. Anderson
- National Cancer Institute, Rockville, MD; EMMES Corporation, Rockville, MD; CTIS, Rockville, MD; University of Nebraska, Omaha, NE; Children's Oncology Group, Arcadia, CA
| | - J. Goldberg
- National Cancer Institute, Rockville, MD; EMMES Corporation, Rockville, MD; CTIS, Rockville, MD; University of Nebraska, Omaha, NE; Children's Oncology Group, Arcadia, CA
| | - J. Adler
- National Cancer Institute, Rockville, MD; EMMES Corporation, Rockville, MD; CTIS, Rockville, MD; University of Nebraska, Omaha, NE; Children's Oncology Group, Arcadia, CA
| | - L. Covington
- National Cancer Institute, Rockville, MD; EMMES Corporation, Rockville, MD; CTIS, Rockville, MD; University of Nebraska, Omaha, NE; Children's Oncology Group, Arcadia, CA
| | - D. Olson
- National Cancer Institute, Rockville, MD; EMMES Corporation, Rockville, MD; CTIS, Rockville, MD; University of Nebraska, Omaha, NE; Children's Oncology Group, Arcadia, CA
| | - B. Gordon
- National Cancer Institute, Rockville, MD; EMMES Corporation, Rockville, MD; CTIS, Rockville, MD; University of Nebraska, Omaha, NE; Children's Oncology Group, Arcadia, CA
| | - G. Reaman
- National Cancer Institute, Rockville, MD; EMMES Corporation, Rockville, MD; CTIS, Rockville, MD; University of Nebraska, Omaha, NE; Children's Oncology Group, Arcadia, CA
| | - J. Everett
- National Cancer Institute, Rockville, MD; EMMES Corporation, Rockville, MD; CTIS, Rockville, MD; University of Nebraska, Omaha, NE; Children's Oncology Group, Arcadia, CA
| | - M. Smith
- National Cancer Institute, Rockville, MD; EMMES Corporation, Rockville, MD; CTIS, Rockville, MD; University of Nebraska, Omaha, NE; Children's Oncology Group, Arcadia, CA
| | - M. Christian
- National Cancer Institute, Rockville, MD; EMMES Corporation, Rockville, MD; CTIS, Rockville, MD; University of Nebraska, Omaha, NE; Children's Oncology Group, Arcadia, CA
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Abelev BI, Aggarwal MM, Ahammed Z, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Baumgart S, Belaga VV, Bellingeri-Laurikainen A, Bellwied R, Benedosso F, Betts RR, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Blyth SL, Bombara M, Bonner BE, Botje M, Bouchet J, Brandin AV, Bravar A, Burton TP, Bystersky M, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen JY, Cheng J, Cherney M, Chikanian A, Christie W, Chung SU, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Dash S, Daugherity M, de Moura MM, Dedovich TG, Dephillips M, Derevschikov AA, Didenko L, Dietel T, Djawotho P, Dogra SM, Dong X, Drachenberg JL, Draper JE, Du F, Dunin VB, Dunlop JC, Dutta Mazumdar MR, Eckardt V, Edwards WR, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi CA, Gaillard L, Ganti MS, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov YG, Gos H, Grebenyuk O, Grosnick D, Guertin SM, Guimaraes KSFF, Gupta N, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Henry TW, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman AM, Hoffmann GW, Hofman D, Hollis R, Horner MJ, Huang HZ, Hughes EW, Humanic TJ, Igo G, Iordanova A, Jacobs P, Jacobs WW, Jakl P, Jia F, Jones PG, Judd EG, Kabana S, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev VY, Kim BC, Kiryluk J, Kisiel A, Kislov EM, Klein SR, Knospe AG, Kocoloski A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kowalik KL, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kurnadi P, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lapointe S, Laue F, Lauret J, Lebedev A, Lednicky R, Lee CH, Lehocka S, LeVine MJ, Li C, Li Q, Li Y, Lin G, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Ljubicic T, Llope WJ, Longacre RS, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma JG, Ma YG, Magestro D, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Matis HS, Matulenko YA, McClain CJ, McShane TS, Melnick Y, Meschanin A, Millane J, Miller ML, Minaev NG, Mioduszewski S, Mironov C, Mischke A, Mitchell J, Mohanty B, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Nepali NS, Netrakanti PK, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Pachr M, Pal SK, Panebratsev Y, Pavlinov AI, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak SC, Planinic M, Pluta J, Poljak N, Porile N, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Qattan IA, Raniwala R, Raniwala S, Ray RL, Relyea D, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shen WQ, Shimanskiy SS, Sichtermann EP, Simon F, Singaraju RN, Smirnov N, Snellings R, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Staszak D, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Suarez MC, Subba NL, Sumbera M, Sun XM, Sun Z, Surrow B, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tarnowsky T, Thomas JH, Timmins AR, Timoshenko S, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van der Kolk N, van Leeuwen M, Vander Molen AM, Varma R, Vasilevski IM, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Waggoner WT, Wang F, Wang G, Wang JS, Wang XL, Wang Y, Watson JW, Webb JC, Westfall GD, Wetzler A, Whitten C, Wieman H, Wissink SW, Witt R, Wu J, Wu Y, Xu N, Xu QH, Xu Z, Yepes P, Yoo IK, Yue Q, Yurevich VI, Zhan W, Zhang H, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN, Zuo JX. Transverse momentum and centrality dependence of high-pT nonphotonic electron suppression in Au+Au collisions at sqrt[s NN]=200 GeV. Phys Rev Lett 2007; 98:192301. [PMID: 17677616 DOI: 10.1103/physrevlett.98.192301] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2006] [Revised: 01/15/2007] [Indexed: 05/16/2023]
Abstract
The STAR collaboration at the BNL Relativistic Heavy-Ion Collider (RHIC) reports measurements of the inclusive yield of nonphotonic electrons, which arise dominantly from semileptonic decays of heavy flavor mesons, over a broad range of transverse momenta (1.2<p(T)<10 GeV/c) in p+p, d+Au, and Au+Au collisions at sqrt[s_{NN}]=200 GeV. The nonphotonic electron yield exhibits an unexpectedly large suppression in central Au+Au collisions at high p(T), suggesting substantial heavy-quark energy loss at RHIC. The centrality and p(T) dependences of the suppression provide constraints on theoretical models of suppression.
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Affiliation(s)
- B I Abelev
- University of Illinois, Chicago, IL 61801, USA
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Adams J, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Anderson M, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellingeri-Laurikainen A, Bellwied R, Bezverkhny BI, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Blyth CO, Blyth SL, Bonner BE, Botje M, Bouchet J, Brandin AV, Bravar A, Bystersky M, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Castillo J, Catu O, Cebra D, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Chen Y, Cheng J, Cherney M, Chikanian A, Choi HA, Christie W, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Das S, Daugherity M, de Moura MM, Dedovich TG, DePhillips M, Derevschikov AA, Didenko L, Dietel T, Djawotho P, Dogra SM, Dong WJ, Dong X, Draper JE, Du F, Dunin VB, Dunlop JC, Dutta Mazumdar MR, Eckardt V, Edwards WR, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Fatemi R, Fedorisin J, Filimonov K, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi CA, Gaillard L, Gans J, Ganti MS, Ghazikhanian V, Ghosh P, Gonzalez JE, Gorbunov YG, Gos H, Grebenyuk O, Grosnick D, Guertin SM, Guimaraes KSFF, Guo Y, Gupta N, Gutierrez TD, Haag B, Hallman TJ, Hamed A, Harris JW, He W, Heinz M, Henry TW, Hepplemann S, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horner MJ, Huang HZ, Huang SL, Hughes EW, Humanic TJ, Igo G, Jacobs P, Jacobs WW, Jakl P, Jia F, Jiang H, Jones PG, Judd EG, Kabana S, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Khodyrev VY, Kim BC, Kiryluk J, Kisiel A, Kislov EM, Klein SR, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kowalik KL, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lapointe S, Laue F, Lauret J, Lebedev A, Lednicky R, Lee CH, Lehocka S, Levine MJ, Li C, Li Q, Li Y, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Liu Z, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Lu Y, Ludlam T, Lynn D, Ma GL, Ma JG, Ma YG, Magestro D, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Matis HS, Matulenko YA, McClain CJ, McShane TS, Melnick Y, Meschanin A, Miller ML, Minaev NG, Mioduszewski S, Mironov C, Mischke A, Mishra DK, Mitchell J, Mohanty B, Molnar L, Moore CF, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, Nikitin VA, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Pachr M, Pal SK, Panebratsev Y, Panitkin SY, Pavlinov AI, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Petrov VA, Phatak SC, Picha R, Planinic M, Pluta J, Poljak N, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rakness G, Raniwala R, Raniwala S, Ray RL, Razin SV, Reinnarth J, Relyea D, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Sarsour M, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Schweda K, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shen WQ, Shimanskiy SS, Sichtermann E, Simon F, Singaraju RN, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, Stadnik A, Stanislaus TDS, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Suaide AAP, Sugarbaker E, Sumbera M, Sun Z, Surrow B, Swanger M, Symons TJM, Szanto de Toledo A, Tai A, Takahashi J, Tang AH, Tarnowsky T, Thein D, Thomas JH, Timmins AR, Timoshenko S, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Van Buren G, van der Kolk N, van Leeuwen M, Vander Molen AM, Varma R, Vasilevski IM, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Waggoner WT, Wang F, Wang G, Wang JS, Wang XL, Wang Y, Watson JW, Webb JC, Westfall GD, Wetzler A, Whitten C, Wieman H, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu QH, Xu Z, Yepes P, Yoo IK, Yurevich VI, Zhan W, Zhang H, Zhang WM, Zhang Y, Zhang ZP, Zhao Y, Zhong C, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN, Zuo JX. Scaling properties of hyperon production in Au+Au collisions at square root [sNN]=200 GeV. Phys Rev Lett 2007; 98:062301. [PMID: 17358934 DOI: 10.1103/physrevlett.98.062301] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2006] [Indexed: 05/14/2023]
Abstract
We present the scaling properties of Lambda, Xi, and Omega in midrapidity Au+Au collisions at the Brookhaven National Laboratory Relativistic Heavy Ion Collider at sqrt[s_{NN}]=200 GeV. The yield of multistrange baryons per participant nucleon increases from peripheral to central collisions more rapidly than that of Lambda, indicating an increase of the strange-quark density of the matter produced. The strange phase-space occupancy factor gamma_{s} approaches unity for the most central collisions. Moreover, the nuclear modification factors of p, Lambda, and Xi are consistent with each other for 2<p_{T}<5 GeV/c in agreement with a scenario of hadron formation from constituent quark degrees of freedom.
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Affiliation(s)
- J Adams
- University of Birmingham, Birmingham, United Kingdom
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