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

abstract

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

published proceedings

  • Phys Rev Lett

altmetric score

  • 0.5

author list (cited authors)

  • Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., ... STAR Collaboration.

citation count

  • 84

complete list of 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, 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, Md||Nayak, TK||Nelson, JM||Nogach, LV||Novak, J||Odyniec, G||Ogawa, A||Oh, K||Ohlson, A||Okorokov, V||Oldag, EW||Oliveira, RAN||Olson, D||Pachr, M||Page, BS||Pal, SK||Pan, YX||Pandit, Y||Panebratsev, Y||Pawlak, T||Pawlik, B||Pei, H||Perkins, C||Peryt, W||Pile, P||Planinic, M||Pluta, J||Poljak, N||Porter, J||Poskanzer, AM||Powell, CB||Pruneau, C||Pruthi, NK||Przybycien, M||Pujahari, PR||Putschke, J||Qiu, H||Ramachandran, S||Raniwala, R||Raniwala, S||Ray, RL||Riley, CK||Ritter, HG||Roberts, JB||Rogachevskiy, OV||Romero, JL||Ross, JF||Ruan, L||Rusnak, J||Sahoo, NR||Sahu, PK||Sakrejda, I||Salur, S||Sandacz, A||Sandweiss, J||Sangaline, E||Sarkar, A||Schambach, J||Scharenberg, RP||Schmah, AM||Schmidke, B||Schmitz, N||Schuster, TR||Seger, J||Seyboth, P||Shah, N||Shahaliev, E||Shao, M||Sharma, B||Sharma, M||Shi, SS||Shou, QY||Sichtermann, EP||Singaraju, RN||Skoby, MJ||Smirnov, D||Smirnov, N||Solanki, D||Sorensen, P||deSouza, UG||Spinka, HM||Srivastava, B||Stanislaus, TDS||Stevens, JR||Stock, R||Strikhanov, M||Stringfellow, B||Suaide, AAP||Suarez, MC||Sumbera, M||Sun, XM||Sun, Y||Sun, Z||Surrow, B||Svirida, DN||Symons, TJM||Szanto de Toledo, A||Takahashi, J||Tang, AH||Tang, Z||Tarini, LH||Tarnowsky, T||Thomas, JH||Tian, J||Timmins, AR||Tlusty, D||Tokarev, M||Trentalange, S||Tribble, RE||Tribedy, P||Trzeciak, BA||Tsai, OD||Turnau, J||Ullrich, T||Underwood, DG||Van Buren, G||van Nieuwenhuizen, G||Vanfossen, JA||Varma, R||Vasconcelos, GMS||Videbæk, F||Viyogi, YP||Vokal, S||Voloshin, SA||Vossen, A||Wada, M||Wang, F||Wang, G||Wang, H||Wang, JS||Wang, Q||Wang, XL||Wang, Y||Webb, G||Webb, JC||Westfall, GD||Whitten, C||Wieman, H||Wissink, SW||Witt, R||Wu, YF||Xiao, Z||Xie, W||Xin, K||Xu, H||Xu, N||Xu, QH||Xu, W||Xu, Y||Xu, Z||Xue, L||Yang, Y||Yang, Y||Yepes, P||Yi, L||Yip, K||Yoo, 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

publication date

  • April 2013