Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at √sNN=7.7-62.4 GeV

被引：71

作者：

Adamczyk, L. ^{[1
]}

Adkins, J. K. ^{[20
]}

Agakishiev, G. ^{[18
]}

Aggarwal, M. M. ^{[30
]}

Ahammed, Z. ^{[48
]}

Alekseev, I. ^{[16
]}

Aparin, A. ^{[18
]}

Arkhipkin, D. ^{[3
]}

Aschenauer, E. C. ^{[3
]}

Averichev, G. S. ^{[18
]}

Bai, X. ^{[8
]}

Bairathi, V. ^{[27
]}

Banerjee, A. ^{[48
]}

Bellwied, R. ^{[44
]}

Bhasin, A. ^{[17
]}

Bhati, A. K. ^{[30
]}

Bhattarai, P. ^{[43
]}

Bielcik, J. ^{[10
]}

Bielcikova, J. ^{[11
]}

Bland, L. C. ^{[3
]}

Bordyuzhin, I. G. ^{[16
]}

Bouchet, J. ^{[19
]}

Brandenburg, D. ^{[36
]}

Brandin, A. V. ^{[26
]}

Bunzarov, I. ^{[18
]}

Butterworth, J. ^{[36
]}

Caines, H. ^{[52
]}

Sanchez, M. Calderon de la Barca ^{[5
]}

Campbell, J. M. ^{[28
]}

Cebra, D. ^{[5
]}

Cervantes, M. C. ^{[42
]}

Chakaberia, I. ^{[3
]}

Chaloupka, P. ^{[10
]}

Chang, Z. ^{[42
]}

Chattopadhyay, S. ^{[48
]}

Chen, X. ^{[22
]}

Chen, J. H. ^{[39
]}

Cheng, J. ^{[45
]}

Cherney, M. ^{[9
]}

Chisman, O. ^{[6
]}

Christie, W. ^{[3
]}

Contin, G. ^{[23
]}

Crawford, H. J. ^{[4
]}

Das, S. ^{[13
]}

De Silva, L. C. ^{[9
]}

Debbe, R. R. ^{[3
]}

Dedovich, T. G. ^{[18
]}

Deng, J. ^{[38
]}

Derevschikov, A. A. ^{[32
]}

di Ruzza, B. ^{[3
]}

机构：

[1] AGH Univ Sci & Technol, PL-30059 Krakow, Poland

[2] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA

[3] Brookhaven Natl Lab, Upton, NY 11973 USA

[4] Univ Calif Berkeley, Berkeley, CA 94720 USA

[5] Univ Calif Davis, Davis, CA 95616 USA

[6] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[7] Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China

[8] Univ Illinois, Chicago, IL 60607 USA

[9] Creighton Univ, Omaha, NE 68178 USA

[10] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic

[11] Nucl Phys Inst AS CR, Rez 25068, Czech Republic

[12] FIAS, D-60438 Frankfurt, Germany

[13] Inst Phys, Bhubaneswar 751005, Orissa, India

[14] Indian Inst Technol, Bombay 400076, Maharashtra, India

[15] Indiana Univ, Bloomington, IN 47408 USA

[16] Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia

[17] Univ Jammu, Jammu 180001, India

[18] Joint Inst Nucl Res, Dubna 141980, Russia

[19] Kent State Univ, Kent, OH 44242 USA

[20] Univ Kentucky, Lexington, KY 40506 USA

[21] Korea Inst Sci & Technol Informat, Taejon 305701, South Korea

[22] Inst Modern Phys, Lanzhou 730000, Peoples R China

[23] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[24] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[25] Michigan State Univ, E Lansing, MI 48824 USA

[26] Moscow Engn Phys Inst, Moscow 115409, Russia

[27] Natl Inst Sci Educ & Res, Bhubaneswar 751005, Orissa, India

[28] Ohio State Univ, Columbus, OH 43210 USA

[29] Inst Nucl Phys PAN, PL-31342 Krakow, Poland

[30] Panjab Univ, Chandigarh 160014, India

[31] Penn State Univ, University Pk, PA 16802 USA

[32] Inst High Energy Phys, Protvino 142281, Russia

[33] Purdue Univ, W Lafayette, IN 47907 USA

[34] Pusan Natl Univ, Pusan 609735, South Korea

[35] Univ Rajasthan, Jaipur 302004, Rajasthan, India

[36] Rice Univ, Houston, TX 77251 USA

[37] Univ Sci & Technol China, Hefei 230026, Peoples R China

[38] Shandong Univ, Jinan 250100, Shandong, Peoples R China

[39] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[40] SUNY Stony Brook, Stony Brook, NY 11794 USA

[41] Temple Univ, Philadelphia, PA 19122 USA

[42] Texas A&M Univ, College Stn, TX 77843 USA

[43] Univ Texas Austin, Austin, TX 78712 USA

[44] Univ Houston, Houston, TX 77204 USA

[45] Tsinghua Univ, Beijing 100084, Peoples R China

[46] US Naval Acad, Annapolis, MD 21402 USA

[47] Valparaiso Univ, Valparaiso, IN 46383 USA

[48] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India

[49] Warsaw Univ Technol, PL-00661 Warsaw, Poland

[50] Wayne State Univ, Detroit, MI 48201 USA

来源：

PHYSICAL REVIEW C | 2016年 / 93卷 / 01期

基金：

美国国家科学基金会; 新加坡国家研究基金会;

关键词：

RESONANCE DECAY; PARTON; MODEL;

D O I：

10.1103/PhysRevC.93.014907

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Elliptic flow (v(2)) values for identified particles at midrapidity in Au + Au collisions measured by the STAR experiment in the Beam Energy Scan at the Relativistic Heavy Ion Collider at root s(NN) = 7.7-62.4 GeV are presented for three centrality classes. The centrality dependence and the data at root s(NN) = 14.5 GeV are new. Except at the lowest beam energies, we observe a similar relative v(2) baryon-meson splitting for all centrality classes which is in agreement within 15% with the number-of-constituent quark scaling. The larger v(2) for most particles relative to antiparticles, already observed for minimum bias collisions, shows a clear centrality dependence, with the largest difference for the most central collisions. Also, the results are compared with a multiphase transport (AMPT) model and fit with a blast wave model.

引用

页数：13

共 28 条

[1] Elliptic flow of identified hadrons in Au + Au collisions at √sNN=7.7-62.4 GeV [J].

Adamczyk, L. ;

Adkins, J. K. ;

Agakishiev, G. ;

Aggarwal, M. M. ;

Ahammed, Z. ;

Alekseev, I. ;

Alford, J. ;

Anson, C. D. ;

Aparin, A. ;

Arkhipkin, D. ;

Aschenauer, E. ;

Averichev, G. S. ;

Balewski, J. ;

Banerjee, A. ;

Barnovska, Z. ;

Beavis, D. R. ;

Bellwied, R. ;

Betancourt, M. J. ;

Betts, R. R. ;

Bhasin, A. ;

Bhati, A. K. ;

Bhattarai, P. ;

Bichsel, H. ;

Bielcik, J. ;

Bielcikova, J. ;

Bland, L. C. ;

Bordyuzhin, I. G. ;

Borowski, W. ;

Bouchet, J. ;

Brandin, A. V. ;

Brovko, S. G. ;

Bruna, E. ;

Bueltmann, S. ;

Bunzarov, I. ;

Burton, T. P. ;

Butterworth, J. ;

Cai, X. Z. ;

Caines, H. ;

Sanchez, M. Calderon de la Barca ;

Cebra, D. ;

Cendejas, R. ;

Cervantes, M. C. ;

Chaloupka, P. ;

Chang, Z. ;

Chattopadhyay, S. ;

Chen, H. F. ;

Chen, J. H. ;

Chen, J. Y. ;

Chen, L. ;

Cheng, J. .

PHYSICAL REVIEW C, 2013, 88 (01)

[2] Observation of an Energy-Dependent Difference in Elliptic Flow between Particles and Antiparticles in Relativistic Heavy Ion Collisions [J].

Adamczyk, L. ;

Adkins, J. K. ;

Agakishiev, G. ;

Aggarwal, M. M. ;

Ahammed, Z. ;

Alekseev, I. ;

Alford, J. ;

Anson, C. D. ;

Aparin, A. ;

Arkhipkin, D. ;

Aschenauer, E. ;

Averichev, G. S. ;

Balewski, J. ;

Banerjee, A. ;

Barnovska, Z. ;

Beavis, D. R. ;

Bellwied, R. ;

Betancourt, M. J. ;

Betts, R. R. ;

Bhasin, A. ;

Bhati, A. K. ;

Bhattarai, P. ;

Bichsel, H. ;

Bielcik, J. ;

Bielcikova, J. ;

Bland, L. C. ;

Bordyuzhin, I. G. ;

Borowski, W. ;

Bouchet, J. ;

Brandin, A. V. ;

Brovko, S. G. ;

Bruna, E. ;

Bueltmann, S. ;

Bunzarov, I. ;

Burton, T. P. ;

Butterworth, J. ;

Cai, X. Z. ;

Caines, H. ;

Sanchez, M. Calderon de la Barca ;

Cebra, D. ;

Cendejas, R. ;

Cervantes, M. C. ;

Chaloupka, P. ;

Chang, Z. ;

Chattopadhyay, S. ;

Chen, H. F. ;

Chen, J. H. ;

Chen, J. Y. ;

Chen, L. ;

Cheng, J. .

PHYSICAL REVIEW LETTERS, 2013, 110 (14)

[3] Inclusive charged hadron elliptic flow in Au plus Au collisions at √sNN=7.7-39 GeV [J].

Adamczyk, L. ;

Agakishiev, G. ;

Aggarwal, M. M. ;

Ahammed, Z. ;

Alakhverdyants, A. V. ;

Alekseev, I. ;

Alford, J. ;

Anderson, B. D. ;

Anson, C. D. ;

Arkhipkin, D. ;

Aschenauer, E. ;

Averichev, G. S. ;

Balewski, J. ;

Banerjee, A. ;

Barnovska, Z. ;

Beavis, D. R. ;

Bellwied, R. ;

Betancourt, M. J. ;

Betts, R. R. ;

Bhasin, A. ;

Bhati, A. K. ;

Bichsel, H. ;

Bielcik, J. ;

Bielcikova, J. ;

Bland, L. C. ;

Bordyuzhin, I. G. ;

Borowski, W. ;

Bouchet, J. ;

Brandin, A. V. ;

Brovko, S. G. ;

Bruna, E. ;

Bueltmann, S. ;

Bunzarov, I. ;

Burton, T. P. ;

Butterworth, J. ;

Cai, X. Z. ;

Caines, H. ;

Sanchez, M. Calderon de la Barca ;

Cebra, D. ;

Cendejas, R. ;

Cervantes, M. C. ;

Chaloupka, P. ;

Chang, Z. ;

Chattopadhyay, S. ;

Chen, H. F. ;

Chen, J. H. ;

Chen, J. Y. ;

Chen, L. ;

Cheng, J. ;

Cherney, M. .

PHYSICAL REVIEW C, 2012, 86 (05)

[4]

Adler C, 2001, PHYS REV LETT, V87, DOI [10.1103/PhysRevLett.262301, 10.1103/PhysRevLett.87.182301, 10.1103/PhysRevLett.87.262301]

[5] Directed and elliptic flow of charged particles in Cu plus Cu collisions at √sNN=22.4 GeV [J].

Agakishiev, G. ;

Aggarwal, M. M. ;

Ahammed, Z. ;

Alakhverdyants, A. V. ;

Alekseev, I. ;

Alford, J. ;

Anderson, B. D. ;

Anson, C. D. ;

Arkhipkin, D. ;

Averichev, G. S. ;

Balewski, J. ;

Beavis, D. R. ;

Behera, N. K. ;

Bellwied, R. ;

Betancourt, M. J. ;

Betts, R. R. ;

Bhasin, A. ;

Bhati, A. K. ;

Bichsel, H. ;

Bielcik, J. ;

Bielcikova, J. ;

Bland, L. C. ;

Bordyuzhin, I. G. ;

Borowski, W. ;

Bouchet, J. ;

Braidot, E. ;

Brandin, A. V. ;

Bridgeman, A. ;

Brovko, S. G. ;

Bruna, E. ;

Bueltmann, S. ;

Bunzarov, I. ;

Burton, T. P. ;

Cai, X. Z. ;

Caines, H. ;

Sanchez, M. Calderon de la Barca ;

Cebra, D. ;

Cendejas, R. ;

Cervantes, M. C. ;

Chaloupka, P. ;

Chattopadhyay, S. ;

Chen, H. F. ;

Chen, J. H. ;

Chen, J. Y. ;

Chen, L. ;

Cheng, J. ;

Cherney, M. ;

Chikanian, A. ;

Choi, K. E. ;

Christie, W. .

PHYSICAL REVIEW C, 2012, 85 (01)

[6]

Aggarwal M. M., ARXIV10072613

[7] The STAR trigger [J].

Bieser, FS ;

Crawford, HJ ;

Engelage, J ;

Eppley, G ;

Greiner, LC ;

Judd, EG ;

Klein, SR ;

Meissner, F ;

Minor, R ;

Milosevich, Z ;

Mutchler, G ;

Nelson, JM ;

Schambach, J ;

VanderMolen, AS ;

Ward, H ;

Yepes, P .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 499 (2-3) :766-777

[8] HIGHLY RELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS - THE CENTRAL RAPIDITY REGION [J].

BJORKEN, JD .

PHYSICAL REVIEW D, 1983, 27 (01) :140-151

[9] PIONS FROM RESONANCE DECAY IN BROOKHAVEN RELATIVISTIC HEAVY-ION COLLISIONS [J].

BROWN, GE ;

STACHEL, J ;

WELKE, GM .

PHYSICS LETTERS B, 1991, 253 (1-2) :19-22

[10] SINGLE-PARTICLE DISTRIBUTION IN HYDRODYNAMIC AND STATISTICAL THERMODYNAMIC MODELS OF MULTIPARTICLE PRODUCTION [J].

COOPER, F ;

FRYE, G .

PHYSICAL REVIEW D, 1974, 10 (01) :186-189

← 1 2 3 →