Directed flow of identified particles in Au+Au collisions at √[SNN]=200  GeV at RHIC.

Journal Article (Journal Article)

STAR's measurements of directed flow (v1) around midrapidity for π±, K±, KS0, p, and p[over ¯] in Au+Au collisions at √[sNN]=200  GeV are presented. A negative v1(y) slope is observed for most of produced particles (π±, K±, KS0, and p[over ¯]). In 5%-30% central collisions, a sizable difference is present between the v1(y) slope of protons and antiprotons, with the former being consistent with zero within errors. The v1 excitation function is presented. Comparisons to model calculations (RQMD, UrQMD, AMPT, QGSM with parton recombination, and a hydrodynamics model with a tilted source) are made. For those models which have calculations of v1 for both pions and protons, none of them can describe v1(y) for pions and protons simultaneously. The hydrodynamics model with a tilted source as currently implemented cannot explain the centrality dependence of the difference between the v1(y) slopes of protons and antiprotons.

Full Text

Duke Authors

Cited Authors

  • Adamczyk, L; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alakhverdyants, AV; Alekseev, I; Alford, J; Anderson, BD; Anson, CD; Arkhipkin, D; Averichev, GS; Balewski, J; Banerjee, A; Barnovska, Z; Beavis, DR; Bellwied, R; Betancourt, MJ; Betts, RR; Bhasin, A; Bhati, AK; 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; Cai, XZ; Caines, H; Calderón de la Barca Sánchez, M; Cebra, D; Cendejas, R; Cervantes, MC; Chaloupka, P; 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; Davila Leyva, A; De Silva, LC; Debbe, RR; Dedovich, TG; Deng, J; Derradi de Souza, R; Dhamija, S; Didenko, L; Ding, F; 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; Fedorisin, J; Fersch, RG; Filip, P; Finch, E; Fisyak, Y; Gagliardi, CA; Gangadharan, DR; Geurts, F; Gliske, S; Gorbunov, YN; Grebenyuk, OG; Grosnick, D; 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; Huo, L; Igo, G; Jacobs, WW; Jena, C; Joseph, J; Judd, EG; Kabana, S; Kang, K; Kapitan, J; Kauder, K; Ke, HW; Keane, D; Kechechyan, A; Kesich, A; Kettler, D; Kikola, DP; Kiryluk, J; Kisiel, A; Kizka, V; Klein, SR; Koetke, DD; Kollegger, T; Konzer, J; Koralt, I; Koroleva, L; Korsch, W; Kotchenda, L; Kravtsov, P; Krueger, K; Kumar, L; Lamont, MAC; Landgraf, JM; LaPointe, S; Lauret, J; Lebedev, A; Lednicky, R; Lee, JH; Leight, W; LeVine, MJ; Li, C; Li, L; 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; Mahapatra, DP; Majka, R; Mall, OI; Margetis, S; Markert, C; Masui, H; Matis, HS; McDonald, D; McShane, TS; Mioduszewski, S; Mitrovski, MK; Mohammed, Y; Mohanty, B; Morozov, B; Munhoz, MG; Mustafa, MK; Naglis, M; Nandi, BK; Nasim, M; Nayak, TK; Nogach, LV; 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; Prindle, D; Pruneau, C; Pruthi, NK; Przybycien, M; Pujahari, PR; Putschke, J; Qiu, H; Raniwala, R; Raniwala, S; Ray, RL; Redwine, R; Reed, R; Riley, CK; Ritter, HG; Roberts, JB; Rogachevskiy, OV; Romero, JL; Ruan, L; Rusnak, J; Sahoo, NR; Sakrejda, I; Salur, S; Sandweiss, J; Sangaline, E; Sarkar, A; Schambach, J; Scharenberg, RP; Schmah, AM; Schmitz, N; Schuster, TR; Seele, J; 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, N; Solanki, D; Sorensen, P; deSouza, UG; Spinka, HM; Srivastava, B; Stanislaus, TDS; Steadman, SG; 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; Thein, D; Thomas, JH; Tian, J; Timmins, AR; Tlusty, D; Tokarev, M; Trainor, TA; 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; Witzke, W; 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, Y; Yip, K; Yoo, I-K; Zawisza, M; Zbroszczyk, H; Zhang, JB; Zhang, S; Zhang, WM; Zhang, XP; Zhang, Y; Zhang, ZP; Zhao, F; Zhao, J; Zhong, C; Zhu, X; Zhu, YH; Zoulkarneeva, Y; STAR Collaboration,

Published Date

  • May 15, 2012

Published In

Volume / Issue

  • 108 / 20

Start / End Page

  • 202301 -

PubMed ID

  • 23003142

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.108.202301

Language

  • eng