Observation of an energy-dependent difference in elliptic flow between particles and antiparticles in relativistic heavy ion collisions.

Published

Journal Article

Elliptic flow (v(2)) values for identified particles at midrapidity in Au + Au collisions, measured by the STAR experiment in the beam energy scan at RHIC at sqrt[s(NN)] = 7.7-62.4 GeV, are presented. A beam-energy-dependent difference of the values of v(2) between particles and corresponding antiparticles was observed. The difference increases with decreasing beam energy and is larger for baryons compared to mesons. This implies that, at lower energies, particles and antiparticles are not consistent with the universal number-of-constituent-quark scaling of v(2) that was observed at sqrt[s(NN)] = 200 GeV.

Full Text

Duke Authors

Cited Authors

  • Adamczyk, L; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Alford, J; Anson, CD; Aparin, A; Arkhipkin, D; Aschenauer, E; Averichev, GS; Balewski, J; Banerjee, A; Barnovska, Z; Beavis, DR; Bellwied, R; Betancourt, MJ; Betts, RR; Bhasin, A; Bhati, AK; Bhattarai, P; Bichsel, H; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Borowski, W; Bouchet, J; Brandin, AV; Brovko, SG; Bruna, E; Bültmann, S; Bunzarov, I; Burton, TP; Butterworth, J; Cai, XZ; Caines, H; Calderón de la Barca Sánchez, M; Cebra, D; Cendejas, R; Cervantes, MC; Chaloupka, P; Chang, Z; Chattopadhyay, S; Chen, HF; Chen, JH; Chen, JY; Chen, L; Cheng, J; Cherney, M; Chikanian, A; Christie, W; Chung, P; Chwastowski, J; Codrington, MJM; Corliss, R; Cramer, JG; Crawford, HJ; Cui, X; Das, S; Davila Leyva, A; De Silva, LC; Debbe, RR; Dedovich, TG; Deng, J; Derradi de Souza, R; Dhamija, S; di Ruzza, B; Didenko, L; Ding, F; Dion, A; Djawotho, P; Dong, X; Drachenberg, JL; Draper, JE; Du, CM; Dunkelberger, LE; Dunlop, JC; Efimov, LG; Elnimr, M; Engelage, J; Eppley, G; Eun, L; Evdokimov, O; Fatemi, R; Fazio, S; Fedorisin, J; Fersch, RG; Filip, P; Finch, E; Fisyak, Y; Flores, E; Gagliardi, CA; Gangadharan, DR; Garand, D; Geurts, F; Gibson, A; Gliske, S; Grebenyuk, OG; Grosnick, D; Gupta, A; Gupta, S; Guryn, W; Haag, B; Hajkova, O; Hamed, A; Han, L-X; Harris, JW; Hays-Wehle, JP; Heppelmann, S; Hirsch, A; Hoffmann, GW; Hofman, DJ; Horvat, S; Huang, B; Huang, HZ; Huck, P; Humanic, TJ; Igo, G; Jacobs, WW; Jena, C; Judd, EG; Kabana, S; Kang, K; Kapitan, J; Kauder, K; Ke, HW; Keane, D; Kechechyan, A; Kesich, A; Kikola, DP; Kiryluk, J; Kisel, I; Kisiel, A; Klein, SR; Koetke, DD; Kollegger, T; Konzer, J; Koralt, I; Korsch, W; Kotchenda, L; Kravtsov, P; Krueger, K; Kulakov, I; Kumar, L; Lamont, MAC; Landgraf, JM; Landry, KD; LaPointe, S; Lauret, J; Lebedev, A; Lednicky, R; Lee, JH; Leight, W; LeVine, MJ; Li, C; Li, W; Li, X; Li, Y; Li, ZM; Lima, LM; Lisa, MA; Liu, F; Ljubicic, T; Llope, WJ; Longacre, RS; Lu, Y; Luo, X; Luszczak, A; Ma, GL; Ma, YG; Madagodagettige Don, DMMD; Mahapatra, DP; Majka, R; Margetis, S; Markert, C; Masui, H; Matis, HS; McDonald, D; McShane, TS; Mioduszewski, S; Mitrovski, MK; Mohammed, Y; Mohanty, B; Mondal, MM; Munhoz, MG; Mustafa, MK; Naglis, M; Nandi, BK; Nasim, M; Nayak, TK; Nelson, JM; Nogach, LV; Novak, J; Odyniec, G; Ogawa, A; Oh, K; Ohlson, A; Okorokov, V; Oldag, EW; Oliveira, RAN; Olson, D; Pachr, M; Page, BS; Pal, SK; Pan, YX; Pandit, Y; Panebratsev, Y; Pawlak, T; Pawlik, B; Pei, H; Perkins, C; Peryt, W; Pile, P; Planinic, M; Pluta, J; Poljak, N; Porter, J; Poskanzer, AM; Powell, CB; Pruneau, C; Pruthi, NK; Przybycien, M; Pujahari, PR; Putschke, J; Qiu, H; Ramachandran, S; Raniwala, R; Raniwala, S; Ray, RL; Riley, CK; Ritter, HG; Roberts, JB; Rogachevskiy, OV; Romero, JL; Ross, JF; Ruan, L; Rusnak, J; Sahoo, NR; Sahu, PK; Sakrejda, I; Salur, S; Sandacz, A; Sandweiss, J; Sangaline, E; Sarkar, A; Schambach, J; Scharenberg, RP; Schmah, AM; Schmidke, B; Schmitz, N; Schuster, TR; Seger, J; Seyboth, P; Shah, N; Shahaliev, E; Shao, M; Sharma, B; Sharma, M; Shi, SS; Shou, QY; Sichtermann, EP; Singaraju, RN; Skoby, MJ; Smirnov, D; Smirnov, N; Solanki, D; Sorensen, P; deSouza, UG; Spinka, HM; Srivastava, B; Stanislaus, TDS; Stevens, JR; Stock, R; Strikhanov, M; Stringfellow, B; Suaide, AAP; Suarez, MC; Sumbera, M; Sun, XM; Sun, Y; Sun, Z; Surrow, B; Svirida, DN; Symons, TJM; Szanto de Toledo, A; Takahashi, J; Tang, AH; Tang, Z; Tarini, LH; Tarnowsky, T; Thomas, JH; Tian, J; Timmins, AR; Tlusty, D; Tokarev, M; Trentalange, S; Tribble, RE; Tribedy, P; Trzeciak, BA; Tsai, OD; Turnau, J; Ullrich, T; Underwood, DG; Van Buren, G; van Nieuwenhuizen, G; Vanfossen, JA; Varma, R; Vasconcelos, GMS; Videbæk, F; Viyogi, YP; Vokal, S; Voloshin, SA; Vossen, A; Wada, M; Wang, F; Wang, G; Wang, H; Wang, JS; Wang, Q; Wang, XL; Wang, Y; Webb, G; Webb, JC; Westfall, GD; Whitten, C; Wieman, H; Wissink, SW; Witt, R; Wu, YF; Xiao, Z; Xie, W; Xin, K; Xu, H; Xu, N; Xu, QH; Xu, W; Xu, Y; Xu, Z; Xue, L; Yang, Y; Yepes, P; Yi, L; Yip, K; Yoo, I-K; Zawisza, M; Zbroszczyk, H; Zhang, JB; Zhang, S; Zhang, XP; Zhang, Y; Zhang, ZP; Zhao, F; Zhao, J; Zhong, C; Zhu, X; Zhu, YH; Zoulkarneeva, Y; Zyzak, M; STAR Collaboration,

Published Date

  • April 2, 2013

Published In

Volume / Issue

  • 110 / 14

Start / End Page

  • 142301 -

PubMed ID

  • 25166982

Pubmed Central ID

  • 25166982

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.110.142301

Language

  • eng