Fluctuations of charge separation perpendicular to the event plane and local parity violation in root S-NN=200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider uri icon

abstract

  • Previous experimental results based on data (15106 events) collected by the STAR detector at the BNL Relativistic Heavy Ion Collider suggest event-by-event charge-separation fluctuations perpendicular to the event plane in noncentral heavy-ion collisions. Here we present the correlator previously used split into its two component parts to reveal correlations parallel and perpendicular to the event plane. The results are from a high-statistics 200-GeV Au + Au collisions data set (57106 events) collected by the STAR experiment. We explicitly count units of charge separation from which we find clear evidence for more charge-separation fluctuations perpendicular than parallel to the event plane. We also employ a modified correlator to study the possible P-even background in same- and opposite-charge correlations, and find that the P-even background may largely be explained by momentum conservation and collective motion. 2013 American Physical Society.

published proceedings

  • PHYSICAL REVIEW C

author list (cited authors)

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

citation count

  • 74

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||Bueltmann, S||Bunzarov, I||Burton, TP||Butterworth, J||Caines, H||Sanchez, M Calderon de la Barca||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||Leyva, A Davila||De Silva, LC||Debbe, RR||Dedovich, TG||Deng, J||Derradi de Souza, R||Dhamija, S||di Ruzza, B||Didenko, L||Dilks, C||Ding, F||Dion, A||Djawotho, P||Dong, X||Drachenberg, JL||Draper, JE||Du, CM||Dunkelberger, LE||Dunlop, JC||Efimov, LG||Elnimr, M||Engelage, J||Engle, KS||Eppley, G||Eun, L||Evdokimov, O||Fatemi, R||Fazio, S||Fedorisin, J||Fersch, RG||Filip, P||Finch, E||Fisyak, Y||Flores, CE||Gagliardi, CA||Gangadharan, DR||Garand, D||Geurts, F||Gibson, A||Gliske, S||Grebenyuk, OG||Grosnick, D||Guo, Y||Gupta, A||Gupta, S||Guryn, W||Haag, B||Hajkova, O||Hamed, A||Han, L-X||Haque, R||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||Kauder, K||Ke, HW||Keane, D||Kechechyan, A||Kesich, A||Kikola, DP||Kiryluk, J||Kisel, I||Kisiel, A||Koetke, DD||Kollegger, T||Konzer, J||Koralt, I||Korsch, W||Kotchenda, L||Kravtsov, P||Krueger, K||Kulakov, I||Kumar, L||Kycia, RA||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||Luo, X||Ma, GL||Ma, YG||Don, DMMD Madagodagettige||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||Plyku, D||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||Roy, A||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||Shen, WQ||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||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 Jr||Varma, R||Vasconcelos, GMS||Vertesi, R||Videbaek, F||Viyogi, YP||Vokal, S||Voloshin, SA||Vossen, A||Wada, M||Walker, M||Wang, F||Wang, G||Wang, H||Wang, JS||Wang, Q||Wang, XL||Wang, Y||Webb, G||Webb, JC||Westfall, GD||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||Yan, W||Yang, C||Yang, Y||Yang, Y||Yepes, P||Yi, L||Yip, K||Yoo, I-K||Zawisza, Y||Zbroszczyk, H||Zha, W||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

  • December 2013