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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. Phys Rev Lett 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- J Adams
- University of Birmingham, Birmingham, United Kingdom
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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. Phys Rev Lett 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- J Adams
- University of Birmingham, Birmingham, United Kingdom
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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. Phys Rev Lett 2005; 95:062301. [PMID: 16090941 DOI: 10.1103/physrevlett.95.062301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2005] [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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Affiliation(s)
- J Adams
- University of Birmingham, Birmingham, United Kingdom
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