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Abstract
Detection of occult hepatitis B requires assays of the highest sensitivity and specificity with a lower limit of detection of less than 10 IU/mL for hepatitis B virus (HBV) DNA and <0.1 ng/mL for hepatitis B surface antigen (HBsAg). This covert condition is relatively common in patients with chronic hepatitis C virus (HCV) that seems to exert some influence on the replicative capacity and latency of HBV. Detection of virus-specific nucleic acid does not always translate into infectivity, and the occurrence of primer-generated HBV DNA that is of partial genomic length in immunocompetent individuals who have significant levels of hepatitis B surface antibody (anti-HBs) may not be biologically relevant. Acute flares of alanine aminotransferase (ALT) that occur during the early phase of therapy for HCV or ALT levels that remain elevated at the end of therapy in biochemical nonresponders should prompt an assessment for occult hepatitis B. Similarly, the plasma from patients with chronic hepatitis C that is hepatitis B core antibody (anti-HBc) positive (+/-anti-HBs at levels of <100 mIU/mL) should be examined for HBV DNA with the most sensitive assay available. If a liver biopsy is available, immunostaining for hepatitis B surface antigen (HBsAg) and hepatitis B core antigen (HBcAg) should be contemplated and a portion of the sample tested for HBV DNA. This is another reason for optimal collection of a specimen (e.g. two passes with a 16-guage needle under ultrasound guidance). Transmission of HBV to immunosuppressed orthotopic liver transplant recipients by donors with occult hepatitis B (OHB) will continue to occupy the interests of the transplant hepatologist. As patients with OHB may have detectable HBV DNA in serum, peripheral blood mononuclear cells (PBMC) and/or liver that can be reactivated following immunosuppression or intensive cytotoxic chemotherapy, the patient needs to be either monitored or treated depending on the pretreatment serological results such as an isolated anti-HBc reaction or a detectable HBV DNA.
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Malhotra A, Naniwadekar A, Sood G. Hepatobiliary and pancreatic: cirrhosis secondary to hepatic sarcoidosis. J Gastroenterol Hepatol 2008; 23:1942. [PMID: 19120880 DOI: 10.1111/j.1440-1746.2008.05707.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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Aggarwal MM, Ahammed Z, Angelis ALS, Antonenko V, Arefiev V, Astakhov V, Avdeitchikov V, Awes TC, Baba PVKS, Badyal SK, Bathe S, Batiounia B, Baumann C, Bernier T, Bhalla KB, Bhatia VS, Blume C, Bucher D, Büsching H, Carlén L, Chattopadhyay S, Decowski MP, Delagrange H, Donni P, Majumdar MRD, El Chenawi K, Dubey AK, Enosawa K, Fokin S, Frolov V, Ganti MS, Garpman S, Gavrishchuk O, Geurts FJM, Ghosh TK, Glasow R, Guskov B, Gustafsson HA, Gutbrod HH, Hrivnacova I, Ippolitov M, Kalechofsky H, Kamermans R, Karadjev K, Karpio K, Kolb BW, Kosarev I, Koutcheryaev I, Kugler A, Kulinich P, Kurata M, Lebedev A, Löhner H, Luquin L, Mahapatra DP, Manko V, Martin M, Martínez G, Maximov A, Miake Y, Mishra GC, Mohanty B, Mora MJ, Morrison D, Mukhanova T, Mukhopadhyay DS, Naef H, Nandi BK, Nayak SK, Nayak TK, Nianine A, Nikitine V, Nikolaev S, Nilsson P, Nishimura S, Nomokonov P, Nystrand J, Oskarsson A, Otterlund I, Pavliouk S, Peitzmann T, Peressounko D, Petracek V, Phatak SC, Pinganaud W, Plasil F, Purschke ML, Rak J, Rammler M, Raniwala R, Raniwala S, Rao NK, Retiere F, Reygers K, Roland G, Rosselet L, Roufanov I, Roy C, Rubio JM, Sambyal SS, Santo R, Sato S, Schlagheck H, Schmidt HR, Schutz Y, Shabratova G, Shah TH, Sibiriak I, Siemiarczuk T, Silvermyr D, Sinha BC, Slavine N, Söderström K, Sood G, Sørensen SP, Stankus P, Stefanek G, Steinberg P, Stenlund E, Sumbera M, Svensson T, Tsvetkov A, Tykarski L, V D Pijll EC, V Eijndhoven N, V Nieuwenhuizen GJ, Vinogradov A, Viyogi YP, Vodopianov A, Vörös S, Wysłouch B, Young GR. Suppression of high-p{T} neutral pion production in central Pb+Pb collisions at sqrt[S{NN}]=17.3 GeV relative to p+C and p+Pb collisions. PHYSICAL REVIEW LETTERS 2008; 100:242301. [PMID: 18643578 DOI: 10.1103/physrevlett.100.242301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Revised: 05/12/2008] [Indexed: 05/26/2023]
Abstract
Neutral pion transverse momentum spectra were measured in p+C and p+Pb collisions at sqrt[S{NN}]=17.4 GeV at midrapidity (2.3 less than or approximately equal eta{lab} less than or approximately equal 3.0) over the range 0.7 less than or approximately equal p{T} less than or approximately equal 3.5 GeV/c. The spectra are compared to pi{0} spectra measured in Pb+Pb collisions at sqrt[S{NN}]=17.3 GeV in the same experiment. For a wide range of Pb+Pb centralities (N{part} less than or approximately equal 300), the yield of pi{0}'s with p{T} greater than or approximately equal 2 GeV/c is larger than or consistent with the p+C or p+Pb yields scaled with the number of nucleon-nucleon collisions (N{coll}), while for central Pb+Pb collisions with N{part}greater than or approximately equal 350, the pi{0} yield is suppressed.
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Sharma K, Rathi AK, Sood G, Malhotra A, Kumar V, Bahadur AK, Singh K. Metastatic ovarian tumour in patient of carcinoma stomach. TROPICAL GASTROENTEROLOGY : OFFICIAL JOURNAL OF THE DIGESTIVE DISEASES FOUNDATION 2008; 29:112-113. [PMID: 18972776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Krukenberg tumour (KT) is a metastatic ovarian tumour with primary usually seen in the gastrointestinal tract. Here we report the case of a 50-year old menopausal patient with gastric tumour presenting with solitary metastasis to the ovary within 5 months of primary gastric surgery, for which total abdominal hysterectomy with bilateral salpingo-oophorectomy was done. This case stresses the urgent need for early detection and surveillance of treatable tumours metastasising to the ovary.
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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. PHYSICAL REVIEW LETTERS 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] [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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Abelev BI, 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, Benedosso F, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Blyth SL, Bonner BE, Botje M, Bouchet J, Brandin AV, Bravar A, Burton TP, Bystersky M, Cadman RV, Cai XZ, Caines H, Sánchez MCDLB, Castillo J, Catu O, Cebra D, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Cheng J, Cherney M, Chikanian A, Christie W, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Das S, Dash 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, Mazumdar MRD, Eckardt V, Edwards WR, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Fatemi R, Fedorisin J, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi CA, Gaillard L, Ganti MS, Ghazikhanian V, Ghosh P, Gonzalez JE, Gorbunov YG, Gos H, Grebenyuk O, Grosnick D, Guertin SM, Guimaraes KSFF, 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, Hoffman AM, 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, Kocoloski A, 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, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Liu Z, Ljubicic T, Llope WJ, Long H, 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, Mishra DK, Mitchell J, Mohanty B, Molnar L, Moore CF, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, 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, 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, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, 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, 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, Buren GV, van der Kolk N, van Leeuwen M, Molen AMV, 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. Longitudinal double-spin asymmetry and cross section for inclusive jet production in polarized proton collisions at square root of s = 200 GeV. PHYSICAL REVIEW LETTERS 2006; 97:252001. [PMID: 17280342 DOI: 10.1103/physrevlett.97.252001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2006] [Indexed: 05/13/2023]
Abstract
We report a measurement of the longitudinal double-spin asymmetry A(LL) and the differential cross section for inclusive midrapidity jet production in polarized proton collisions at square root of s = 200 GeV. The cross section data cover transverse momenta 5 < pT < 50 GeV/c and agree with next-to-leading order perturbative QCD evaluations. The A(LL) data cover 5 < pT < 17 GeV/c and disfavor at 98% C.L. maximal positive gluon polarization in the polarized nucleon.
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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, 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. Direct observation of dijets in central Au+Au collisions at sqrt[sNN]=200 GeV. PHYSICAL REVIEW LETTERS 2006; 97:162301. [PMID: 17155388 DOI: 10.1103/physrevlett.97.162301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2006] [Indexed: 05/12/2023]
Abstract
The STAR Collaboration at the Relativistic Heavy Ion Collider reports measurements of azimuthal correlations of high transverse momentum (pT) charged hadrons in Au+Au collisions at higher pT than reported previously. As (pT) is increased, a narrow, back-to-back peak emerges above the decreasing background, providing a clear dijet signal for all collision centralities studied. Using these correlations, we perform a systematic study of dijet production and suppression in nuclear collisions, providing new constraints on the mechanisms underlying partonic energy loss in dense matter.
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Abelev BI, Aggarwal MM, Ahammed Z, 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, Benedosso F, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Blyth SL, 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, Castillo J, Catu O, Cebra D, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Cheng J, Cherney M, Chikanian A, Christie W, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Das S, Dash 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, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi CA, Gaillard L, Ganti MS, Ghazikhanian V, Ghosh P, Gonzalez JE, Gorbunov YG, Gos H, Grebenyuk O, Grosnick D, Guertin SM, Guimaraes KSFF, 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, Hoffman AM, 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, Kocoloski A, 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, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Liu Z, Ljubicic T, Llope WJ, Long H, 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, Mishra DK, Mitchell J, Mohanty B, Molnar L, Moore CF, 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, Panitkin SY, Pavlinov AI, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, 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, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher MJ, Sahoo R, 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, 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, Subba NL, 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. Identified baryon and meson distributions at large transverse momenta from Au + Au collisions at square root sNN=200 GeV. PHYSICAL REVIEW LETTERS 2006; 97:152301. [PMID: 17155321 DOI: 10.1103/physrevlett.97.152301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2006] [Indexed: 05/12/2023]
Abstract
Transverse momentum spectra of pi+/-, p, and p up to 12 GeV/c at midrapidity in centrality selected Au + Au collisions at square root sNN=200 GeV are presented. In central Au + Au collisions, both pi +/- and p(p) show significant suppression with respect to binary scaling at pT approximately >4 GeV/c. Protons and antiprotons are less suppressed than pi+/-, in the range 1.5 approximately < pT approximately < 6 GeV/c. The pi-/pi+ and p/p ratios show at most a weak pT dependence and no significant centrality dependence. The p/pi ratios in central Au + Au collisions approach the values in p + p and d + Au collisions at pT approximately >5 GeV/c. The results at high pT indicate that the partonic sources of pi+/-, p, and p have similar energy loss when traversing the nuclear medium.
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Adams J, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Arkhipkin D, Averichev GS, Badyal SK, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellingeri-Laurikainen A, Bellwied R, Berger J, Bezverkhny BI, Bharadwaj S, Bhasin A, Bhati AK, Bhatia VS, Bichsel H, Bielcik J, Bielcikova J, Billmeier A, Bland LC, Blyth CO, Blyth SL, Bonner BE, Botje M, Boucham A, Bouchet J, Brandin AV, Bravar A, Bystersky M, Cadman RV, Cai XZ, Caines H, Sánchez MCDLB, 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, Dogra SM, Dong WJ, Dong X, Draper JE, Du F, Dubey AK, Dunin VB, Dunlop JC, Mazumdar MRD, Eckardt V, Edwards WR, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Faivre J, Fatemi R, Fedorisin J, Filimonov K, Filip P, Finch E, Fine V, Fisyak Y, Fornazier KSF, Fox BD, Fu J, Gagliardi CA, Gaillard L, Gans J, Ganti MS, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Gorbunov YG, Gos H, Grachov O, Grebenyuk O, Grosnick D, Guertin SM, Guo Y, Gupta A, Gupta N, Gutierrez TD, Hallman TJ, Hamed A, Harris JW, 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, Ishihara A, Jacobs P, Jacobs WW, Jiang H, Jones PG, Judd EG, Kabana S, Kang K, 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, Kowalik KL, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kutuev RK, Kuznetsov AA, Lamb R, Lamont MAC, Landgraf JM, Lange 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 QJ, 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, Mahajan S, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Marx JN, Matis HS, Matulenko YA, McClain CJ, McShane TS, Melnick Y, Meschanin A, Miller ML, Minaev NG, Mironov C, Mischke A, Mishra DK, Mitchell J, Mioduszewski S, Mohanty B, Molnar L, Moore CF, Morozov DA, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Netrakanti PK, Nikitin VA, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, 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, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rakness G, Raniwala R, Raniwala S, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Reinnarth J, Renault G, 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, Savin I, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Schweda K, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Shao W, Sharma M, Shen WQ, Shestermanov KE, 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, Surrow B, Swanger M, Symons TJM, de Toledo AS, 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, Buren GV, van der Kolk N, van Leeuwen M, Molen AMV, Varma R, Vasilevski IM, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Waggoner WT, Wang F, Wang G, Wang G, Wang XL, Wang Y, Wang Y, Wang ZM, Ward H, 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, Xu ZZ, Yepes P, Yoo IK, Yurevich VI, Zborovsky I, Zhang H, Zhang WM, Zhang Y, Zhang ZP, Zhong C, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN, Zuo JX. Forward neutral pion production in p + p and d + Au collisions at square root sNN=200 GeV. PHYSICAL REVIEW LETTERS 2006; 97:152302. [PMID: 17155322 DOI: 10.1103/physrevlett.97.152302] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2006] [Indexed: 05/12/2023]
Abstract
Measurements of the production of forward pi0 mesons from p + p and d + Au collisions at square root sNN=200 GeV are reported. The p + p yield generally agrees with next-to-leading order perturbative QCD calculations. The d + Au yield per binary collision is suppressed as eta increases, decreasing to approximately 30% of the p + p yield at eta =4.00, well below shadowing expectations. Exploratory measurements of azimuthal correlations of the forward pi0 with charged hadrons at eta approximately 0 show a recoil peak in p + p that is suppressed in d + Au at low pion energy. These observations are qualitatively consistent with a saturation picture of the low-x gluon structure of heavy nuclei.
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Abelev BI, 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, Benedosso F, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Blyth SL, 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, Castillo J, Catu O, Cebra D, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen JH, Cheng J, Cherney M, Chikanian A, Christie W, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Das S, Dash 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, Ganti MS, Gaudichet L, Ghazikhanian V, Ghosh P, Gonzalez JE, Gorbunov YG, Gos H, Grebenyuk O, Grosnick D, Guertin SM, Guimaraes KSFF, 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, Hoffman AM, 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, Kocoloski A, 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, Lin X, Lindenbaum SJ, Lisa MA, Liu F, Liu H, Liu J, Liu L, Liu Z, Ljubicic T, Llope WJ, Long H, 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, Mishra DK, Mitchell J, Mohanty B, Molnar L, Moore CF, Morozov DA, Munhoz MG, Nandi BK, Nattrass C, Nayak TK, Nelson JM, Netrakanti PK, 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, 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, Sakuma T, 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, Buren GV, van der Kolk N, van Leeuwen M, Molen AMV, 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. Strange baryon resonance production in sqrt s NN=200 GeV p+p and Au+Au collisions. PHYSICAL REVIEW LETTERS 2006; 97:132301. [PMID: 17026027 DOI: 10.1103/physrevlett.97.132301] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2006] [Revised: 07/27/2006] [Indexed: 05/12/2023]
Abstract
We report the measurements of Sigma(1385) and Lambda(1520) production in p+p and Au+Au collisions at sqrt[s{NN}]=200 GeV from the STAR Collaboration. The yields and the p(T) spectra are presented and discussed in terms of chemical and thermal freeze-out conditions and compared to model predictions. Thermal and microscopic models do not adequately describe the yields of all the resonances produced in central Au+Au collisions. Our results indicate that there may be a time span between chemical and thermal freeze-out during which elastic hadronic interactions occur.
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Sood G, Sood A, Jindal A, Verma DK, Dhiman DS. Ultrasound guided percutaneous nephrostomy for obstructive uropathy in benign and malignant diseases. Int Braz J Urol 2006; 32:281-6. [PMID: 16813670 DOI: 10.1590/s1677-55382006000300004] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2006] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE Analyze the success rate, complications and overall benefit of ultrasound guided percutaneous nephrostomy (PCN) for the relief of obstructive uropathy in benign and malignant diseases. MATERIALS AND METHODS PCN was performed in 50 kidneys of 32 patients. It was performed in emergency rooms totally under ultrasound guidance by general surgeons. Seldinger technique was used in all cases. Changes in renal function after the procedure were analyzed using paired t-test. RESULTS The procedure was successfully completed in 42 out of 50 kidneys (84%). There has been no major complication and 28% minor complications. The renal function improved significantly when PCN was performed for benign conditions (mean creatinine 3.52 mg/dL before and 2.18 mg/dL after PCN), however in malignancy there has been no significant improvement in renal function (before PCN mean creatinine 6.39 mg/dL and after PCN 5.41 mg/dL). CONCLUSION We conclude that PCN can be effectively performed under ultrasound guidance and should be the initial procedure in acutely obstructed kidneys with pyonephrosis and poor renal function. In malignant cases, however, improvement in renal function is possible only if the procedure is carried out at an early stage.
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Adams J, Adler C, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, 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, 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, Cebra D, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Chernenko SP, Cherney M, Chikanian A, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, 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, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grebenyuk O, Gronstal S, Grosnick D, Guertin SM, Gupta A, Gutierrez TD, Hallman TJ, Hamed A, 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, Hughes E, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Jiang H, Johnson I, Jones PG, Judd EG, Kabana S, 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, 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 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, McClain CJ, McShane TS, Meissner F, Melnick Y, Meschanin A, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mischke A, 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, Netrakanti PK, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, 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, 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, Seyboth P, Shahaliev E, Shao M, Shao W, Sharma M, Shestermanov KE, Shimanskii SS, Singaraju RN, Simon F, Skoro G, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, Stanislaus TDS, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Timoshenko S, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Tsai O, Ullrich T, Underwood DG, Van Buren G, Vandermolen AM, Varma R, Vasilevski I, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Voloshin SA, Vznuzdaev M, Waggoner W, Wang F, Wang G, Wang G, Wang XL, Wang Y, Wang ZM, Ward H, Watson JW, Webb JC, 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, Yuting B, Zanevski YV, Zhang H, Zhang WM, Zhang ZP, Zhaomin ZP, Zizong ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Distributions of charged hadrons associated with high transverse momentum particles in pp and Au+Au collisions at sqrt[sNN]=200 GeV. PHYSICAL REVIEW LETTERS 2005; 95:152301. [PMID: 16241721 DOI: 10.1103/physrevlett.95.152301] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2005] [Indexed: 05/05/2023]
Abstract
Charged hadrons in [EQUATION: SEE TEXT] associated with particles of [EQUATION: SEE TEXT] are reconstructed in pp and Au+Au collisions at sqrt[sNN]=200 GeV. The associated multiplicity and p magnitude sum are found to increase from pp to central Au+Au collisions. The associated p distributions, while similar in shape on the nearside, are significantly softened on the awayside in central Au+Au relative to pp and not much harder than that of inclusive hadrons. The results, consistent with jet quenching, suggest that the awayside fragments approach equilibration with the medium traversed.
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Adams J, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Arkhipkin D, Averichev GS, Badyal SK, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellingeri-Laurikainen A, Bellwied R, Berger J, Bezverkhny BI, Bharadwaj S, Bhasin A, Bhati AK, Bhatia VS, Bichsel H, Bielcik J, Bielcikova J, Billmeier A, Bland LC, Blyth CO, Blyth SL, Bonner BE, Botje M, Boucham A, 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, 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, Dogra SM, Dong WJ, Dong X, Draper JE, Du F, Dubey AK, 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, Faivre J, Fatemi R, Fedorisin J, Filimonov K, Filip P, Finch E, Fine V, Fisyak Y, Fornazier KSF, Fu J, Gagliardi CA, Gaillard L, Gans J, Ganti MS, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Gos H, Grachov O, Grebenyuk O, Grosnick D, Guertin SM, Guo Y, Gupta A, Gupta N, Gutierrez TD, Hallman TJ, Hamed A, Hardtke D, Harris JW, 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, Ishihara A, Jacobs P, Jacobs WW, Jedynak M, Jiang H, Jones PG, Judd EG, Kabana S, Kang K, Kaplan M, Keane D, Kechechyan A, Khodyrev VY, Kiryluk J, Kisiel A, Kislov EM, Klay J, Klein SR, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kowalik KL, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Laue F, Lauret J, Lebedev A, Lednicky R, 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 QJ, 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, Mahajan S, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Marx JN, Matis HS, Matulenko YA, McClain CJ, McShane TS, Meissner F, Melnick Y, Meschanin A, Miller ML, Minaev NG, Mironov C, Mischke A, Mishra DK, Mitchell J, Mohanty B, Molnar L, Moore CF, Morozov DA, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Netrakanti PK, Nikitin VA, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, 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, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rakness G, Raniwala R, Raniwala S, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Reinnarth J, Renault G, Retiere F, Ridiger A, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Russcher M, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Sarsour M, Savin I, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Schweda K, Seger J, Seyboth P, Shahaliev E, Shao M, Shao W, Sharma M, Shen WQ, Shestermanov KE, 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, Suire C, Sumbera M, 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, 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 G, Wang XL, Wang Y, Wang Y, Wang ZM, Ward H, Watson JW, Webb JC, Westfall GD, Wetzler A, Whitten C, Wieman H, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yamamoto E, Yepes P, Yurevich VI, Zborovsky I, Zhang H, Zhang WM, Zhang Y, Zhang ZP, Zhong C, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN, Zuo JX. Multistrange Baryon elliptic flow in Au+Au collisions at square root of sNN=200 GeV. PHYSICAL REVIEW LETTERS 2005; 95:122301. [PMID: 16197068 DOI: 10.1103/physrevlett.95.122301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2005] [Indexed: 05/04/2023]
Abstract
We report on the first measurement of elliptic flow v2(pT) of multistrange baryons Xi- +Xi+ and Omega- + Omega+ in heavy-ion collisions. In minimum-bias Au+Au collisions at square root of s(NN)=200 GeV, a significant amount of elliptic flow, comparable to other nonstrange baryons, is observed for multistrange baryons which are expected to be particularly sensitive to the dynamics of the partonic stage of heavy-ion collisions. The pT dependence of v2 of the multistrange baryons confirms the number of constituent quark scaling previously observed for lighter hadrons. These results support the idea that a substantial fraction of the observed collective motion is developed at the early partonic stage in ultrarelativistic nuclear collisions at the Relativistic Heavy Ion Collider.
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Adams J, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Arkhipkin D, Averichev GS, Badyal SK, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellingeri-Laurikainen A, Bellwied R, Berger J, Bezverkhny BI, Bhardwaj S, Bhasin A, Bhati AK, Bichsel H, Bielcik J, Bielcikova J, Billmeier A, Bland LC, Blyth CO, Blyth S, Bonner BE, Botje M, Boucham A, Bouchet J, Brandin AV, Bravar A, Bystersky M, Cadman RV, Cai XZ, Caines H, de la Barca Sánchez MC, Castillo J, Catu O, Cebra D, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Cheng J, Cherney M, Chikanian A, Christie W, Coffin JP, Cormier TM, Cosentino MR, Cramer JG, Crawford HJ, Das D, Das S, de Moura MM, Dedovich TG, Derevschikov AA, Didenko L, Dietel T, Dogra SM, Dong WJ, Dong X, Draper JE, Du F, Dubey AK, Dunin VB, Dunlop JC, Mazumdar MRD, Eckardt V, Edwards WR, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Faivre J, Fatemi R, Fedorisin J, Filimonov K, Filip P, Finch E, Fine V, Fisyak Y, Fornazier KSF, Fu J, Gagliardi CA, Gaillard L, Gans J, Ganti MS, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Gos H, Grachov O, Grebenyuk O, Grosnick D, Guertin SM, Guo Y, Gupta A, Gutierrez TD, Hallman TJ, Hamed A, Hardtke D, Harris JW, Heinz M, Henry TW, Hepplemann S, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horner M, Huang HZ, Huang SL, Hughes EW, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Jedynak M, Jiang H, Jones PG, Judd EG, Kabana S, Kang K, Kaplan M, Keane D, Kechechyan A, Khodyrev VY, Kiryluk J, Kisiel A, Kislov EM, Klay J, Klein SR, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kowalik KL, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Laue F, Lauret J, Lebedev A, Lednicky R, 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 QJ, 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, Mahajan S, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Marx JN, Matis HS, Matulenko YA, McClain CJ, McShane TS, Meissner F, Melnick Y, Meschanin A, Miller ML, Minaev NG, Mironov C, Mischke A, Mishra DK, Mitchell J, Mohanty B, Molnar L, Moore CF, Morozov DA, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Netrakanti PK, Nikitin VA, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, 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, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, Rakness G, Raniwala R, Raniwala S, Ravel O, Ray RL, Razin SV, Reichhold D, Reid JG, Reinnarth J, Renault G, 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, Savin I, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Schweda K, Seger J, Seyboth P, Shahaliev E, Shao M, Shao W, Sharma M, Shen WQ, Shestermanov KE, 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, Suire C, Sumbera M, Surrow B, Swanger M, Symons TJM, de Toledo AS, Tai A, Takahashi J, Tang AH, Tarnowsky T, Thein D, Thomas JH, Timoshenko S, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Buren GV, van Leeuwen M, Molen AMV, Varma R, Vasilevski IM, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Waggoner WT, Wang F, Wang G, Wang G, Wang XL, Wang Y, Wang Y, Wang ZM, Ward H, Watson JW, Webb JC, Westfall GD, Wetzler A, Whitten C, Wieman H, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yamamoto E, Yepes P, Yurevich VI, Zborovsky I, Zhang H, Zhang WM, Zhang Y, Zhang ZP, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN. Multiplicity and pseudorapidity distributions of photons in Au+Au collisions at square root of (S(NN)) = 62.4 GeV. PHYSICAL REVIEW LETTERS 2005; 95:062301. [PMID: 16090941 DOI: 10.1103/physrevlett.95.062301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2005] [Revised: 04/12/2005] [Indexed: 05/03/2023]
Abstract
We present the first measurement of pseudorapidity distribution of photons in the region 2.3 < or = eta < or = 3.7 for different centralities in Au+Au collisions at square root of (S(NN)) = 62.4 GeV. We find that the photon yield scales with the number of participating nucleons at all collision centralities studied. The pseudorapidity distribution of photons, dominated by pi0 decays, has been compared to those of charged pions, photons, and inclusive charged particles from heavy-ion and nucleon-nucleon collisions at various energies. The photon production has been shown to be consistent with the energy and centrality independent limiting fragmentation scenario.
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Adams J, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Arkhipkin D, Averichev GS, Badyal SK, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bezverkhny BI, Bharadwaj S, Bhasin A, Bhati AK, Bhatia VS, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Botje M, Boucham A, Brandin AV, Bravar A, Bystersky M, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Castillo J, Cebra D, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Cheng J, Cherney M, Chikanian A, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Das D, Das S, de Moura MM, Derevschikov AA, Didenko L, Dietel T, Dogra SM, Dong WJ, Dong X, Draper JE, Du F, Dubey AK, 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, Faivre J, Fatemi R, Fedorisin J, Filimonov K, Filip P, Finch E, Fine V, Fisyak Y, Fomenko K, Fu J, Gagliardi CA, Gaillard L, Gans J, Ganti MS, Gaudichet L, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grebenyuk O, Grosnick D, Guertin SM, Guo Y, Gupta A, Gutierrez TD, Hallman TJ, Hamed A, Hardtke D, Harris JW, Heinz M, Henry TW, Hepplemann S, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Huang HZ, Huang SL, Hughes EW, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Jiang H, Jones PG, Judd EG, Kabana S, Kang K, Kaplan M, Keane D, Khodyrev VY, Kiryluk J, Kisiel A, Kislov EM, Klay J, Klein SR, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Laue F, Lauret J, Lebedev A, Lednicky R, Lehocka S, LeVine MJ, Li C, Li Q, Li Y, Lin G, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu QJ, 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, Mahajan S, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Marx JN, Matis HS, Matulenko YA, McClain CJ, McShane TS, Meissner F, Melnick Y, Meschanin A, Miller ML, Minaev NG, Mironov C, Mischke A, Mishra DK, Mitchell J, Mohanty B, Molnar L, Moore CF, Morozov DA, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Netrakanti PK, Nikitin VA, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, 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, Porile N, Porter J, Poskanzer AM, Potekhin M, Potrebenikova E, Potukuchi BVKS, Prindle D, Pruneau C, Putschke J, 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, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Sarsour M, Savin I, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Schweda K, Seger J, Seyboth P, Shahaliev E, Shao M, Shao W, Sharma M, Shen WQ, Shestermanov KE, Shimanskiy SS, Sichtermann E, Simon F, Singaraju RN, Skoro G, 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, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Tarnowsky T, Thein D, Thomas JH, Timoshenko S, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Urkinbaev A, Van Buren G, van Leeuwen M, Vander Molen AM, Varma R, Vasilevski IM, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Vznuzdaev M, Waggoner WT, Wang F, Wang G, Wang G, Wang XL, Wang Y, Wang Y, Wang ZM, Ward H, Watson JW, Webb JC, Wells R, Westfall GD, Wetzler A, Whitten C, Wieman H, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yamamoto E, Yepes P, Yurevich VI, Zanevsky YV, Zhang H, Zhang WM, Zhang ZP, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN. Open charm yields in d+Au collisions at squareroot[sNN]=200 GeV. PHYSICAL REVIEW LETTERS 2005; 94:062301. [PMID: 15783724 DOI: 10.1103/physrevlett.94.062301] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2004] [Indexed: 05/24/2023]
Abstract
Midrapidity open charm spectra from direct reconstruction of D0(D0)-->K-/+pi+/- in d+Au collisions and indirect electron-positron measurements via charm semileptonic decays in p+p and d+Au collisions at squareroot[sNN]=200 GeV are reported. The D0(D0) spectrum covers a transverse momentum (pT) range of 0.1<pT<3 GeV/c, whereas the electron spectra cover a range of 1<pT<4 GeV/c. The electron spectra show approximate binary collision scaling between p+p and d+Au collisions. From these two independent analyses, the differential cross section per nucleon-nucleon binary interaction at midrapidity for open charm production from d+Au collisions at BNL RHIC is dsigma(NN)cc/dy=0.30+/-0.04(stat)+/-0.09(syst) mb. The results are compared to theoretical calculations. Implications for charmonium results in A+A collisions are discussed.
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Adams J, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Arkhipkin D, Averichev GS, Badyal SK, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bezverkhny BI, Bharadwaj S, Bhasin A, Bhati AK, Bhatia VS, Bichsel H, Billmeier A, Bland LC, Blyth CO, Bonner BE, Botje M, Boucham A, Brandin AV, Bravar A, Bystersky M, Cadman RV, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Carroll J, Castillo J, Cebra D, Chajecki Z, Chaloupka P, Chattopdhyay S, Chen HF, Chen Y, Cheng J, Cherney M, Chikanian A, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Das D, Das S, de Moura MM, Derevschikov AA, Didenko L, Dietel T, Dogra SM, Dong WJ, Dong X, Draper JE, Du F, Dubey AK, 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, Faivre J, Fatemi R, Fedorisin J, Filimonov K, Filip P, Finch E, Fine V, Fisyak Y, Foley KJ, Fomenko K, Fu J, Gagliardi CA, Gans J, Ganti MS, Gaudichet L, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grebenyuk O, Grosnick D, Guertin SM, Guo Y, Gupta A, Gutierrez TD, Hallman TJ, Hamed A, Hardtke D, Harris JW, Heinz M, Henry TW, Hepplemann S, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Huang HZ, Huang SL, Hughes EW, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Jiang H, Jones PG, Judd EG, Kabana S, Kang K, Kaplan M, Keane D, Khodyrev VY, Kiryluk J, Kisiel A, Kislov EM, Klay J, Klein SR, Klyachko A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Laue F, Lauret J, Lebedev A, Lednicky R, Lehocka S, LeVine MJ, Li C, Li Q, Li Y, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu QJ, 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, Mahajan S, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Marx JN, Matis HS, Matulenko YA, McClain CJ, McShane TS, Meissner F, Melnick Y, Meschanin A, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mischke A, Mishra DK, Mitchell J, Mohanty B, Molnar L, Moore CF, Morozov DA, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Netrakanti PK, Nikitin VA, Nogach LV, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, 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, 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, Rogachevskiy OV, Romero JL, Rose A, Roy C, Ruan L, Sahoo R, Sakrejda I, Salur S, Sandweiss J, Savin I, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schweda K, Seger J, Seyboth P, Shahaliev E, Shao M, Shao W, Sharma M, Shen WQ, Shestermanov KE, Shimanskiy SS, Sichtermann E, Simon F, Singaraju RN, Skoro G, 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, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Tarnowsky T, Thein D, Thomas JH, Timoshenko S, Tokarev M, Trentalange S, Tribble RE, Tsai OD, Ulery J, Ullrich T, Underwood DG, Urkinbaev A, Van Buren G, van Leeuwen M, Vander Molen AM, Varma R, Vasilevski IM, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Vokal S, Voloshin SA, Vznuzdaev M, Waggoner WT, Wang F, Wang G, Wang G, Wang XL, Wang Y, Wang Y, Wang ZM, Ward H, Watson JW, Webb JC, Wells R, Westfall GD, Wetzler A, Whitten C, Wieman H, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu ZZ, Yamamoto E, Yepes P, Yurevich VI, Zanevsky YV, Zhang H, Zhang WM, Zhang ZP, Zolnierczuk PA, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN. Azimuthal anisotropy and correlations at large transverse momenta in p + p and Au + Au collisions at square root sNN=200 GeV. PHYSICAL REVIEW LETTERS 2004; 93:252301. [PMID: 15697893 DOI: 10.1103/physrevlett.93.252301] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2004] [Indexed: 05/24/2023]
Abstract
Results on high transverse momentum charged particle emission with respect to the reaction plane are presented for Au + Au collisions at square root s(NN)=200 GeV. Two- and four-particle correlations results are presented as well as a comparison of azimuthal correlations in Au + Au collisions to those in p + p at the same energy. The elliptic anisotropy v(2) is found to reach its maximum at p(t) approximately 3 GeV/c, then decrease slowly and remain significant up to p(t) approximately 7-10 GeV/c. Stronger suppression is found in the back-to-back high-p(t) particle correlations for particles emitted out of plane compared to those emitted in plane. The centrality dependence of v(2) at intermediate p(t) is compared to simple models based on jet quenching.
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Aggarwal MM, Ahammed Z, Angelis ALS, Antonenko V, Arefiev V, Astakhov V, Avdeitchikov V, Awes TC, Baba PVKS, Badyal SK, Bathe S, Batiounia B, Bernier T, Bhalla KB, Bhatia VS, Blume C, Bucher D, Büsching H, Carlén L, Chattopadhyay S, Decowski MP, Delagrange H, Donni P, Dutta Majumdar MR, el Chenawi K, Dubey AK, Enosawa K, Fokin S, Frolov V, Ganti MS, Garpman S, Gavrishchuk O, Geurts FJM, Ghosh TK, Glasow R, Guskov B, Gustafsson HA, Gutbrod HH, Hrivnacova I, Ippolitov M, Kalechofsky H, Karadjev K, Karpio K, Kolb BW, Kosarev I, Koutcheryaev I, Kugler A, Kulinich P, Kurata M, Lebedev A, Löhner H, Luquin L, Mahapatra DP, Manko V, Martin M, Martínez G, Maximov A, Miake Y, Mishra GC, Mohanty B, Mora MJ, Morrison D, Moukhanova T, Mukhopadhyay DS, Naef H, Nandi BK, Nayak SK, Nayak TK, Nianine A, Nikitine V, Nikolaev S, Nilsson P, Nishimura S, Nomokonov P, Nystrand J, Oskarsson A, Otterlund I, Peitzmann T, Peressounko D, Petracek V, Phatak SC, Pinganaud W, Plasil F, Purschke ML, Rak J, Raniwala R, Raniwala S, Rao NK, Retiere F, Reygers K, Roland G, Rosselet L, Roufanov I, Roy C, Rubio JM, Sambyal SS, Santo R, Sato S, Schlagheck H, Schmidt HR, Schutz Y, Shabratova G, Shah TH, Sibiriak I, Siemiarczuk T, Silvermyr D, Sinha BC, Slavine N, Söderström K, Sood G, Sørensen SP, Stankus P, Stefanek G, Steinberg P, Stenlund E, Sumbera M, Svensson T, Tsvetkov A, Tykarski L, v d Pijll EC, von Eijndhoven N, von Nieuwenhuizen GJ, Vinogradov A, Viyogi YP, Vodopianov A, Vörös S, Wysłouch B, Young GR. Interferometry of direct photons in central 208Pb + 208Pb collisions at 158A GeV. PHYSICAL REVIEW LETTERS 2004; 93:022301. [PMID: 15323905 DOI: 10.1103/physrevlett.93.022301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2003] [Indexed: 05/24/2023]
Abstract
Two-particle correlations of direct photons were measured in central 208Pb+208Pb collisions at 158A GeV. The invariant interferometric radii were extracted for 100<K(T)<300 MeV/c and compared to radii extracted from charged pion correlations. The yield of soft direct photons, K(T)<300 MeV/c, was extracted from the correlation strength and compared to theoretical calculations.
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Adams J, Adler C, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, Arkhipkin D, Averichev GS, Bai Y, Balewski J, Barannikova O, Barnby LS, Baudot J, Bekele S, Belaga VV, Bellwied R, Berger J, Bezverkhny BI, Bharadwaj S, Bhatia VS, Bichsel H, 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, Cebra D, Chaloupka P, Chattopdhyay S, Chen HF, Chen Y, Cheng J, Cherney M, Chikanian A, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, Das D, Das S, de Moura MM, Derevschikov AA, Didenko L, Dietel T, Dong WJ, Dong X, Draper JE, Du F, Dubey AK, Dunin VB, Dunlop JC, Dutta Mazumdar MR, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Faivre J, Fatemi R, Fedorisin J, Filimonov K, Filip P, Finch E, Fine V, Fisyak Y, Flierl D, Foley KJ, Fomenko K, Fu J, Gagliardi CA, Gans J, Ganti MS, Gaudichet L, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grebenyuk O, Gronstal S, Grosnick D, Guertin SM, Gupta A, Gutierrez TD, Hallman TJ, Hamed A, Hardtke D, Harris JW, Heinz M, Henry TW, Hepplemann S, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Huang HZ, Huang SL, Hughes E, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Jiang H, Jones PG, Judd EG, Kabana S, Kang K, Kaplan M, Keane D, Khodyrev VY, Kiryluk J, Kisiel A, Kislov EM, Klay J, Klein SR, Klyachko A, Koetke DD, Kollegger T, Kopytine M, Kotchenda L, Kramer M, Kravtsov P, Kravtsov VI, Krueger K, Kuhn C, Kulikov AI, Kumar A, Kunz CL, Kutuev RK, Kuznetsov AA, Lamont MAC, Landgraf JM, Lange S, Lansdell CL, Laue F, Lauret J, Lebedev A, Lednicky R, Lehocka S, LeVine MJ, Li C, Li Q, Li Y, Lindenbaum SJ, Lisa MA, Liu F, Liu L, Liu QJ, Liu Z, Ljubicic T, Llope WJ, Long H, Longacre RS, Lopez-Noriega M, Love WA, Ludlam T, Lynn D, Ma GL, Ma JG, Ma YG, Magestro D, Mahajan S, Mahapatra DP, Majka R, Mangotra LK, Manweiler R, Margetis S, Markert C, Martin L, Marx JN, Matis HS, Matulenko YA, McClain CJ, McShane TS, Meissner F, Melnick Y, Meschanin A, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mischke A, Mishra D, Mitchell J, Mohanty B, Molnar L, Moore CF, Mora-Corral MJ, Morozov DA, Morozov V, Munhoz MG, Nandi BK, Nayak TK, Nelson JM, Netrakanti PK, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, 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, 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, Rogachevskiy OV, Romero JL, Rose A, Ruan L, Sakrejda I, Salur S, Sandweiss J, Savin I, Sazhin PS, Schambach J, Scharenberg RP, Schmitz N, Schroeder LS, Schweda K, Seger J, Seyboth P, Shahaliev E, Shao M, Shao W, Sharma M, Shen WQ, Shestermanov KE, Shimanskiy SS, Simon F, Singaraju RN, Skoro G, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, St Claire L, Stadnik A, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Timoshenko S, Tokarev M, Trainor TA, Trentalange S, Tribble RE, Tsai O, Ullrich T, Underwood DG, Urkinbaev A, Van Buren G, Vander Molen AM, Varma R, Vasilevski IM, Vasiliev AN, Vernet R, Vigdor SE, Viyogi VP, Vokal S, Vznuzdaev M, Waggoner B, Wang F, Wang G, Wang G, Wang XL, Wang Y, Wang Y, Wang ZM, Ward H, Webb JC, Wells R, Westfall GD, Wetzler A, Whitten C, Wieman H, Wissink SW, Witt R, Wood J, Wu J, Xu N, Xu Z, Xu Z, Yamamoto E, Yepes P, Yurevich VI, Zanevsky YV, Zhang H, Zhang ZP, Zolnierczuk PA, Zoulkarneev R, Zoulkarneeva Y, Zubarev AN. Multistrange baryon production in Au-Au collisions at sqrt[s(NN)]=130 GeV. PHYSICAL REVIEW LETTERS 2004; 92:182301. [PMID: 15169485 DOI: 10.1103/physrevlett.92.182301] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2003] [Indexed: 05/24/2023]
Abstract
The transverse mass spectra and midrapidity yields for Xis and Omegas are presented. For the 10% most central collisions, the (-)Xi(+)/h(-) ratio increases from the Super Proton Synchrotron to the Relativistic Heavy Ion Collider energies while the Xi(-)/h(-) stays approximately constant. A hydrodynamically inspired model fit to the Xi spectra, which assumes a thermalized source, seems to indicate that these multistrange particles experience a significant transverse flow effect, but are emitted when the system is hotter and the flow is smaller than values obtained from a combined fit to pi, K, p, and Lambdas.
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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, 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 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, 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, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, 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, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Cross sections and transverse single-spin asymmetries in forward neutral-pion production from proton collisions at sqrt[s]=200 GeV. PHYSICAL REVIEW LETTERS 2004; 92:171801. [PMID: 15169138 DOI: 10.1103/physrevlett.92.171801] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2003] [Indexed: 05/24/2023]
Abstract
Measurements of the production of forward high-energy pi(0) mesons from transversely polarized proton collisions at sqrt[s]=200 GeV are reported. The cross section is generally consistent with next-to-leading order perturbative QCD calculations. The analyzing power is small at x(F) below about 0.3, and becomes positive and large at higher x(F), similar to the trend in data at sqrt[s]< or =20 GeV. The analyzing power is in qualitative agreement with perturbative QCD model expectations. This is the first significant spin result seen for particles produced with p(T)>1 GeV/c at a polarized proton collider.
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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, Das D, Das S, Derevschikov AA, Didenko L, Dietel T, 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, Ganti MS, Gutierrez TD, Gagunashvili N, Gans J, 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, 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, Johnson I, Jones PG, Judd EG, Kabana S, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Koetke DD, Kollegger T, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, 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, Leontiev VM, 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 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 V, de Moura MM, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Nevski P, 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, 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, Sumbera M, Surrow B, Symons TJM, de Toledo AS, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, 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, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang HY, Zhang WM, Zhang ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Identified particle distributions in pp and Au+Au collisions at square root of (sNN)=200 GeV. PHYSICAL REVIEW LETTERS 2004; 92:112301. [PMID: 15089125 DOI: 10.1103/physrevlett.92.112301] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2003] [Indexed: 05/24/2023]
Abstract
Transverse mass and rapidity distributions for charged pions, charged kaons, protons, and antiprotons are reported for square root of [sNN]=200 GeV pp and Au+Au collisions at Relativistic Heary Ion Collider (RHIC). Chemical and kinetic equilibrium model fits to our data reveal strong radial flow and long duration from chemical to kinetic freeze-out in central Au+Au collisions. The chemical freeze-out temperature appears to be independent of initial conditions at RHIC energies.
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Adams J, Adler C, Aggarwal MM, Ahammed Z, Amonett J, Anderson BD, 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, 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, Cebra D, Chaloupka P, Chattopadhyay S, Chen HF, Chen Y, Chernenko SP, Cherney M, Chikanian A, Christie W, Coffin JP, Cormier TM, Cramer JG, Crawford HJ, 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, Geurts F, Ghazikhanian V, Ghosh P, Gonzalez JE, Grachov O, Grebenyuk O, Gronstal S, Grosnick D, Guertin SM, Gupta A, Gutierrez TD, Hallman TJ, Hamed A, Hardtke D, Harris JW, Heinz M, Henry TW, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffmann GW, Horsley M, Huang HZ, Huang SL, Hughes E, Humanic TJ, Igo G, Ishihara A, Jacobs P, Jacobs WW, Janik M, Jiang H, Johnson I, Jones PG, Judd EG, Kabana S, 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, 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 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, McClain CJ, McShane TS, Meissner F, Melnick Y, Meschanin A, Miller ML, Milosevich Z, Minaev NG, Mironov C, Mischke A, 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, Netrakanti PK, Nikitin VA, Nogach LV, Norman B, Nurushev SB, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Paic G, 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, 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, Seyboth P, Shahaliev E, Shao M, Shao W, Sharma M, Shestermanov KE, Shimanskii SS, Singaraju RN, Simon F, Skoro G, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Speltz J, Spinka HM, Srivastava B, Stanislaus TDS, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Struck C, Suaide AAP, Sugarbaker E, Suire C, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Timoshenko S, Tokarev M, Tonjes MB, Trainor TA, Trentalange S, Tribble RE, Tsai O, Ullrich T, Underwood DG, Van Buren G, VanderMolen AM, Varma R, Vasilevski I, Vasiliev AN, Vernet R, Vigdor SE, Viyogi YP, Voloshin SA, Vznuzdaev M, Waggoner W, Wang F, Wang G, Wang G, Wang XL, Wang Y, Wang ZM, Ward H, Watson JW, Webb JC, 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, Yuting B, Zanevski YV, Zhang H, Zhang WM, Zhang ZP, Zhaomin ZP, Zizong ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Rho0 production and possible modification in Au+Au and p+p collisions at square root [sNN] = 200 GeV. PHYSICAL REVIEW LETTERS 2004; 92:092301. [PMID: 15089460 DOI: 10.1103/physrevlett.92.092301] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2003] [Indexed: 05/24/2023]
Abstract
We report results on rho(770)(0)-->pi(+)pi(-) production at midrapidity in p+p and peripheral Au+Au collisions at sqrt[s(NN)]=200 GeV. This is the first direct measurement of rho(770)(0)-->pi(+)pi(-) in heavy-ion collisions. The measured rho(0) peak in the invariant mass distribution is shifted by approximately 40 MeV/c(2) in minimum bias p+p interactions and approximately 70 MeV/c(2) in peripheral Au+Au collisions. The rho(0) mass shift is dependent on transverse momentum and multiplicity. The modification of the rho(0) meson mass, width, and shape due to phase space and dynamical effects are discussed.
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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, 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 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, 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, Sumbera M, Surrow B, Symons TJM, de Toledo AS, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, 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, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Azimuthal anisotropy at the relativistic heavy ion collider: the first and fourth harmonics. PHYSICAL REVIEW LETTERS 2004; 92:062301. [PMID: 14995231 DOI: 10.1103/physrevlett.92.062301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2003] [Indexed: 05/24/2023]
Abstract
We report the first observations of the first harmonic (directed flow, v(1)) and the fourth harmonic (v(4)), in the azimuthal distribution of particles with respect to the reaction plane in Au+Au collisions at the BNL Relativistic Heavy Ion Collider (RHIC). Both measurements were done taking advantage of the large elliptic flow (v(2)) generated at RHIC. From the correlation of v(2) with v(1) it is determined that v(2) is positive, or in-plane. The integrated v(4) is about a factor of 10 smaller than v(2). For the sixth (v(6)) and eighth (v(8)) harmonics upper limits on the magnitudes are reported.
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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, 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 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, 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, Sumbera M, Surrow B, Symons TJM, de Toledo AS, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, 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, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Particle-type dependence of azimuthal anisotropy and nuclear modification of particle production in Au+Au collisions at square root of sNN=200 GeV. PHYSICAL REVIEW LETTERS 2004; 92:052302. [PMID: 14995300 DOI: 10.1103/physrevlett.92.052302] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2003] [Indexed: 05/24/2023]
Abstract
We present STAR measurements of the azimuthal anisotropy parameter v(2) and the binary-collision scaled centrality ratio R(CP) for kaons and lambdas (Lambda+Lambda) at midrapidity in Au+Au collisions at square root of s(NN)=200 GeV. In combination, the v(2) and R(CP) particle-type dependencies contradict expectations from partonic energy loss followed by standard fragmentation in vacuum. We establish p(T) approximately 5 GeV/c as the value where the centrality dependent baryon enhancement ends. The K(0)(S) and Lambda+Lambda v(2) values are consistent with expectations of constituent-quark-number scaling from models of hadron formation by parton coalescence or recombination.
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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, Das D, Das S, Derevschikov AA, Didenko L, Dietel T, 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, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Filip P, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Ganti MS, Gutierrez TD, Gagunashvili N, Gans J, 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, 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, Johnson I, Jones PG, Judd EG, Kabana S, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Koetke DD, Kollegger T, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, 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, Leontiev VM, 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 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 V, de Moura MM, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Nevski P, 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, 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, Rykov V, 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, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, 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, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang HY, Zhang WM, Zhang ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Pion-Kaon correlations in central Au+Au collisions at square root [sNN] = 130 GeV. PHYSICAL REVIEW LETTERS 2003; 91:262302. [PMID: 14754044 DOI: 10.1103/physrevlett.91.262302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2003] [Indexed: 05/24/2023]
Abstract
Pion-kaon correlation functions are constructed from central Au+Au STAR data taken at sqrt[s(NN)]=130 GeV by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The results suggest that pions and kaons are not emitted at the same average space-time point. Space-momentum correlations, i.e., transverse flow, lead to a space-time emission asymmetry of pions and kaons that is consistent with the data. This result provides new independent evidence that the system created at RHIC undergoes a collective transverse expansion.
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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, Das D, Das S, Derevschikov AA, Didenko L, Dietel T, Dong X, Draper JE, Drees KA, Du F, Dubey AK, Dunin VB, Dunlop JC, Dutta Majumdar MR, Eckardt V, Efimov LG, Emelianov V, Engelage J, Eppley G, Erazmus B, Fachini P, Faine V, Faivre J, Fatemi R, Filimonov K, Filip P, Finch E, Fisyak Y, Flierl D, Foley KJ, Fu J, Gagliardi CA, Ganti MS, Gagunashvili N, Gans J, 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, Johnson I, Jones PG, Judd EG, Kabana S, Kaneta M, Kaplan M, Keane D, Kiryluk J, Kisiel A, Klay J, Klein SR, Klyachko A, Kollegger T, Konstantinov AS, Kopytine M, Kotchenda L, Kovalenko AD, Kramer M, Kravtsov P, 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, Leontiev VM, 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 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 V, de Moura MM, Munhoz MG, Nandi BK, Nayak SK, Nayak TK, Nelson JM, Nevski P, 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, 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, Rykov V, 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, Sumbera M, Surrow B, Symons TJM, Szanto de Toledo A, Szarwas P, Tai A, Takahashi J, Tang AH, Thein D, Thomas JH, Tikhomirov V, 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, Yakutin AE, Yamamoto E, Yang J, Yepes P, Yurevich VI, Zanevski YV, Zborovský I, Zhang H, Zhang HY, Zhang WM, Zhang ZP, Zołnierczuk PA, Zoulkarneev R, Zoulkarneeva J, Zubarev AN. Transverse-momentum and collision-energy dependence of high-pT hadron suppression in Au+Au collisions at ultrarelativistic energies. PHYSICAL REVIEW LETTERS 2003; 91:172302. [PMID: 14611336 DOI: 10.1103/physrevlett.91.172302] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2003] [Revised: 09/03/2003] [Indexed: 05/24/2023]
Abstract
We report high statistics measurements of inclusive charged hadron production in Au+Au and p+p collisions at sqrt[s(NN)]=200 GeV. A large, approximately constant hadron suppression is observed in central Au+Au collisions for 5<p(T)<12 GeV/c. The collision energy dependence of the yields and the centrality and p(T) dependence of the suppression provide stringent constraints on theoretical models of suppression. Models incorporating initial-state gluon saturation or partonic energy loss in dense matter are largely consistent with observations. We observe no evidence of p(T)-dependent suppression, which may be expected from models incorporating jet attenuation in cold nuclear matter or scattering of fragmentation hadrons.
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