Beam-energy dependence of charge separation along the magnetic field in Au+Au collisions at RHIC. uri icon

abstract

  • Local parity-odd domains are theorized to form inside a quark-gluon plasma which has been produced in high-energy heavy-ion collisions. The local parity-odd domains manifest themselves as charge separation along the magnetic field axis via the chiral magnetic effect. The experimental observation of charge separation has previously been reported for heavy-ion collisions at the top RHIC energies. In this Letter, we present the results of the beam-energy dependence of the charge correlations in Au+Au collisions at midrapidity for center-of-mass energies of 7.7, 11.5, 19.6, 27, 39, and 62.4GeV from the STAR experiment. After background subtraction, the signal gradually reduces with decreased beam energy and tends to vanish by 7.7GeV. This implies the dominance of hadronic interactions over partonic ones at lower collision energies.

published proceedings

  • Phys Rev Lett

altmetric score

  • 0.75

author list (cited authors)

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

citation count

  • 150

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, EC||Averichev, GS||Banerjee, A||Beavis, DR||Bellwied, R||Bhasin, A||Bhati, AK||Bhattarai, P||Bichsel, H||Bielcik, J||Bielcikova, J||Bland, LC||Bordyuzhin, IG||Borowski, W||Bouchet, J||Brandin, AV||Brovko, SG||Bültmann, S||Bunzarov, I||Burton, TP||Butterworth, J||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, L||Cheng, J||Cherney, M||Chikanian, A||Christie, W||Chwastowski, J||Codrington, MJM||Contin, G||Cramer, JG||Crawford, HJ||Cui, X||Das, S||Davila Leyva, A||De Silva, LC||Debbe, RR||Dedovich, TG||Deng, J||Derevschikov, AA||Derradi de Souza, R||Dhamija, S||di Ruzza, B||Didenko, L||Dilks, C||Ding, F||Djawotho, P||Dong, X||Drachenberg, JL||Draper, JE||Du, CM||Dunkelberger, LE||Dunlop, JC||Efimov, LG||Engelage, J||Engle, KS||Eppley, G||Eun, L||Evdokimov, O||Eyser, O||Fatemi, R||Fazio, S||Fedorisin, J||Filip, P||Finch, E||Fisyak, Y||Flores, CE||Gagliardi, CA||Gangadharan, DR||Garand, D||Geurts, F||Gibson, A||Girard, M||Gliske, S||Greiner, L||Grosnick, D||Gunarathne, DS||Guo, Y||Gupta, A||Gupta, S||Guryn, W||Haag, B||Hamed, A||Han, L-X||Haque, R||Harris, JW||Heppelmann, S||Hirsch, A||Hoffmann, GW||Hofman, DJ||Horvat, S||Huang, B||Huang, HZ||Huang, X||Huck, P||Humanic, TJ||Igo, G||Jacobs, WW||Jang, H||Judd, EG||Kabana, S||Kalinkin, D||Kang, K||Kauder, K||Ke, HW||Keane, D||Kechechyan, A||Kesich, A||Khan, ZH||Kikola, DP||Kisel, I||Kisiel, A||Koetke, DD||Kollegger, T||Konzer, J||Koralt, I||Kotchenda, L||Kraishan, AF||Kravtsov, P||Krueger, K||Kulakov, I||Kumar, L||Kycia, RA||Lamont, MAC||Landgraf, JM||Landry, KD||Lauret, J||Lebedev, A||Lednicky, R||Lee, JH||LeVine, MJ||Li, C||Li, W||Li, X||Li, X||Li, Y||Li, ZM||Lisa, MA||Liu, F||Ljubicic, T||Llope, WJ||Lomnitz, M||Longacre, RS||Luo, X||Ma, GL||Ma, YG||Madagodagettige Don, DMMD||Mahapatra, DP||Majka, R||Margetis, S||Markert, C||Masui, H||Matis, HS||McDonald, D||McShane, TS||Minaev, NG||Mioduszewski, S||Mohanty, B||Mondal, MM||Morozov, DA||Mustafa, MK||Nandi, BK||Nasim, Md||Nayak, TK||Nelson, JM||Nigmatkulov, G||Nogach, LV||Noh, SY||Novak, J||Nurushev, SB||Odyniec, G||Ogawa, A||Oh, K||Ohlson, A||Okorokov, V||Oldag, EW||Olvitt, DL||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||Pruthi, NK||Przybycien, M||Pujahari, PR||Putschke, J||Qiu, H||Quintero, A||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||Rusnakova, O||Sahoo, NR||Sahu, PK||Sakrejda, I||Salur, S||Sandweiss, J||Sangaline, E||Sarkar, A||Schambach, J||Scharenberg, RP||Schmah, AM||Schmidke, WB||Schmitz, N||Seger, J||Seyboth, P||Shah, N||Shahaliev, E||Shanmuganathan, PV||Shao, M||Sharma, B||Shen, WQ||Shi, SS||Shou, QY||Sichtermann, EP||Singaraju, RN||Skoby, MJ||Smirnov, D||Smirnov, N||Solanki, D||Sorensen, P||Spinka, HM||Srivastava, B||Stanislaus, TDS||Stevens, JR||Stock, R||Strikhanov, M||Stringfellow, B||Sumbera, M||Sun, X||Sun, XM||Sun, Y||Sun, Z||Surrow, B||Svirida, DN||Symons, TJM||Szelezniak, MA||Takahashi, J||Tang, AH||Tang, Z||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||Vandenbroucke, M||Vanfossen, JA||Varma, R||Vasconcelos, GMS||Vasiliev, AN||Vertesi, R||Videbæk, F||Viyogi, YP||Vokal, S||Voloshin, SA||Vossen, A||Wada, M||Wang, F||Wang, G||Wang, H||Wang, JS||Wang, XL||Wang, Y||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, J||Xu, N||Xu, QH||Xu, Y||Xu, Z||Yan, W||Yang, C||Yang, Y||Yang, Y||Ye, Z||Yepes, P||Yi, L||Yip, K||Yoo, I-K||Yu, N||Zawisza, Y||Zbroszczyk, H||Zha, W||Zhang, JB||Zhang, JL||Zhang, S||Zhang, XP||Zhang, Y||Zhang, ZP||Zhao, F||Zhao, J||Zhong, C||Zhu, X||Zhu, YH||Zoulkarneeva, Y||Zyzak, M

publication date

  • August 2014