/ nucl-ex arXiv:1608.04100


Charge-dependent directed flow in Cu+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV


Adamczyk, L. (AGH-UST, Cracow) ; Adkins, J.K. (Kentucky U.) ; Agakishiev, G. (Dubna, JINR) ; Aggarwal, M.M. (Panjab U.) ; Ahammed, Z. (Calcutta, VECC) ; Alekseev, I. (Moscow Phys. Eng. Inst.) ; Anderson, D.M. (Texas A-M) ; Aoyama, R. (Brookhaven) ; Aparin, A. (Dubna, JINR) ; Arkhipkin, D. (Brookhaven) ; Aschenauer, E.C. (Brookhaven) ; Ashraf, M.U. (Tsinghua U., Beijing) ; Attri, A. (Panjab U.) ; Averichev, G.S. (Dubna, JINR) ; Bai, X. (Hua-Zhong Normal U.) ; Bairathi, V. (Bhubaneswar, NISER) ; Bellwied, R. (Houston U.) ; Bhasin, A. (Jammu U.) ; Bhati, A.K. (Panjab U.) ; Bhattarai, P. (Texas U.) ; Bielcik, J. (Prague, Tech. U.) ; Bielcikova, J. (Rez, Nucl. Phys. Inst.) ; Bland, L.C. (Brookhaven) ; Bordyuzhin, I.G. (Moscow, ITEP) ; Bouchet, J. (Kent State U.) ; Brandenburg, J.D. (Rice U.) ; Brandin, A.V. (Moscow Phys. Eng. Inst.) ; Bunzarov, I. (Dubna, JINR) ; Butterworth, J. (Rice U.) ; Caines, H. (Yale U.) ; Calderon de la Barca Sanchez, M. (UC, Davis) ; Campbell, J.M. (Ohio State U.) ; Cebra, D. (UC, Davis) ; Chakaberia, I. (Brookhaven) ; Chaloupka, P. (Prague, Tech. U.) ; Chang, Z. (Texas A-M) ; Chatterjee, A. (Calcutta, VECC) ; Chattopadhyay, S. (Calcutta, VECC) ; Chen, X. (Lanzhou, Inst. Modern Phys.) ; Chen, J.H. (SINAP, Shanghai) ; Cheng, J. (Tsinghua U., Beijing) ; Cherney, M. (Creighton U.) ; Christie, W. (Brookhaven) ; Contin, G. (LBL, Berkeley) ; Crawford, H.J. (UC, Berkeley) ; Das, S. (Bhubaneswar, Inst. Phys.) ; De Silva, L.C. (Creighton U.) ; Debbe, R.R. (Brookhaven) ; Dedovich, T.G. (Dubna, JINR) ; Deng, J. (Shandong U.) ; Derevschikov, A.A. (Serpukhov, IHEP) ; di Ruzza, B. (Brookhaven) ; Didenko, L. (Brookhaven) ; Dilks, C. (Penn State U.) ; Dong, X. (LBL, Berkeley) ; Drachenberg, J.L. (Lamar U.) ; Draper, J.E. (UC, Davis) ; Du, C.M. (Lanzhou, Inst. Modern Phys.) ; Dunkelberger, L.E. (UCLA) ; Dunlop, J.C. (Brookhaven) ; Efimov, L.G. (Dubna, JINR) ; Engelage, J. (UC, Berkeley) ; Eppley, G. (Rice U.) ; Esha, R. (UCLA) ; Esumi, S. (Brookhaven) ; Evdokimov, O. (Illinois U., Chicago) ; Eyser, O. (Brookhaven) ; Fatemi, R. (Kentucky U.) ; Fazio, S. (Brookhaven) ; Federic, P. (Rez, Nucl. Phys. Inst.) ; Fedorisin, J. (Dubna, JINR) ; Feng, Z. (Hua-Zhong Normal U.) ; Filip, P. (Dubna, JINR) ; Fisyak, Y. (Brookhaven) ; Flores, C.E. (UC, Davis) ; Fulek, L. (AGH-UST, Cracow) ; Gagliardi, C.A. (Texas A-M) ; Garand, D. (Purdue U.) ; Geurts, F. (Rice U.) ; Gibson, A. (Valparaiso U., Indiana) ; Girard, M. (Warsaw U. of Tech.) ; Greiner, L. (LBL, Berkeley) ; Grosnick, D. (Valparaiso U., Indiana) ; Gunarathne, D.S. (Temple U.) ; Guo, Y. (Hefei, CUST) ; Gupta, S. (Jammu U.) ; Gupta, A. (Jammu U.) ; Guryn, W. (Brookhaven) ; Hamad, A.I. (Kent State U.) ; Hamed, A. (Texas A-M) ; Haque, R. (Bhubaneswar, NISER) ; Harris, J.W. (Yale U.) ; He, L. (Purdue U.) ; Heppelmann, S. (Penn State U.) ; Heppelmann, S. (UC, Davis) ; Hirsch, A. (Purdue U.) ; Hoffmann, G.W. (Texas U.) ; Horvat, S. (Yale U.) ; Huang, B. (Illinois U., Chicago) ; Huang, X. (Tsinghua U., Beijing) ; Huang, H.Z. (UCLA) ; Huang, T. (Taiwan, Natl. Cheng Kung U.) ; Huck, P. (Hua-Zhong Normal U.) ; Humanic, T.J. (Ohio State U.) ; Igo, G. (UCLA) ; Jacobs, W.W. (Indiana U.) ; Jentsch, A. (Texas U.) ; Jia, J. (SUNY, Stony Brook) ; Jiang, K. (Hefei, CUST) ; Jowzaee, S. (Wayne State U.) ; Judd, E.G. (UC, Berkeley) ; Kabana, S. (Kent State U.) ; Kalinkin, D. (Indiana U.) ; Kang, K. (Tsinghua U., Beijing) ; Kauder, K. (Wayne State U.) ; Ke, H.W. (Brookhaven) ; Keane, D. (Kent State U.) ; Kechechyan, A. (Dubna, JINR) ; Khan, Z.H. (Illinois U., Chicago) ; Kikola, D.P. (Warsaw U. of Tech.) ; Kisel, I. (Frankfurt U., FIAS) ; Kisiel, A. (Warsaw U. of Tech.) ; Kochenda, L. (Moscow Phys. Eng. Inst.) ; Koetke, D.D. (Valparaiso U., Indiana) ; Kosarzewski, L.K. (Warsaw U. of Tech.) ; Kraishan, A.F. (Temple U.) ; Kravtsov, P. (Moscow Phys. Eng. Inst.) ; Krueger, K. (Argonne) ; Kumar, L. (Panjab U.) ; Lamont, M.A.C. (Brookhaven) ; Landgraf, J.M. (Brookhaven) ; Landry, K.D. (UCLA) ; Lauret, J. (Brookhaven) ; Lebedev, A. (Brookhaven) ; Lednicky, R. (Dubna, JINR) ; Lee, J.H. (Brookhaven) ; Li, Y. (Tsinghua U., Beijing) ; Li, C. (Hefei, CUST) ; Li, W. (SINAP, Shanghai) ; Li, X. (Temple U.) ; Li, X. (Hefei, CUST) ; Lin, T. (Indiana U.) ; Lisa, M.A. (Ohio State U.) ; Liu, Y. (Texas A-M) ; Liu, F. (Hua-Zhong Normal U.) ; Ljubicic, T. (Brookhaven) ; Llope, W.J. (Wayne State U.) ; Lomnitz, M. (Kent State U.) ; Longacre, R.S. (Brookhaven) ; Luo, X. (Hua-Zhong Normal U.) ; Luo, S. (Illinois U., Chicago) ; Ma, G.L. (SINAP, Shanghai) ; Ma, R. (Brookhaven) ; Ma, Y.G. (SINAP, Shanghai) ; Ma, L. (SINAP, Shanghai) ; Magdy, N. (SUNY, Stony Brook) ; Majka, R. (Yale U.) ; Manion, A. (LBL, Berkeley) ; Margetis, S. (Kent State U.) ; Markert, C. (Texas U.) ; Matis, H.S. (LBL, Berkeley) ; McDonald, D. (Houston U.) ; McKinzie, S. (LBL, Berkeley) ; Meehan, K. (UC, Davis) ; Mei, J.C. (Shandong U.) ; Miller, Z.W. (Illinois U., Chicago) ; Minaev, N.G. (Serpukhov, IHEP) ; Mioduszewski, S. (Texas A-M) ; Mishra, D. (Bhubaneswar, NISER) ; Mohanty, B. (Bhubaneswar, NISER) ; Mondal, M.M. (Texas A-M) ; Morozov, D.A. (Serpukhov, IHEP) ; Mustafa, M.K. (LBL, Berkeley) ; Nandi, B.K. (Indian Inst. Tech., Mumbai) ; Nasim, Md. (UCLA) ; Nayak, T.K. (Calcutta, VECC) ; Nigmatkulov, G. (Moscow Phys. Eng. Inst.) ; Niida, T. (Wayne State U.) ; Nogach, L.V. (Serpukhov, IHEP) ; Nonaka, T. (Brookhaven) ; Novak, J. (Michigan State U.) ; Nurushev, S.B. (Serpukhov, IHEP) ; Odyniec, G. (LBL, Berkeley) ; Ogawa, A. (Brookhaven) ; Oh, K. (Pusan Natl. U.) ; Okorokov, V.A. (Moscow Phys. Eng. Inst.) ; Olvitt, D., Jr. (Temple U.) ; Page, B.S. (Brookhaven) ; Pak, R. (Brookhaven) ; Pan, Y.X. (UCLA) ; Pandit, Y. (Illinois U., Chicago) ; Panebratsev, Y. (Dubna, JINR) ; Pawlik, B. (Cracow, INP) ; Pei, H. (Hua-Zhong Normal U.) ; Perkins, C. (UC, Berkeley) ; Pile, P. (Brookhaven) ; Pluta, J. (Warsaw U. of Tech.) ; Poniatowska, K. (Warsaw U. of Tech.) ; Porter, J. (LBL, Berkeley) ; Posik, M. (Temple U.) ; Poskanzer, A.M. (LBL, Berkeley) ; Pruthi, N.K. (Panjab U.) ; Przybycien, M. (AGH-UST, Cracow) ; Putschke, J. (Wayne State U.) ; Qiu, H. (Purdue U.) ; Quintero, A. (Temple U.) ; Ramachandran, S. (Kentucky U.) ; Ray, R.L. (Texas U.) ; Reed, R. (Lehigh U.) ; Rehbein, M.J. (Creighton U.) ; Ritter, H.G. (LBL, Berkeley) ; Roberts, J.B. (Rice U.) ; Rogachevskiy, O.V. (Dubna, JINR) ; Romero, J.L. (UC, Davis) ; Roth, J.D. (Creighton U.) ; Ruan, L. (Brookhaven) ; Rusnak, J. (Rez, Nucl. Phys. Inst.) ; Rusnakova, O. (Prague, Tech. U.) ; Sahoo, N.R. (Texas A-M) ; Sahu, P.K. (Bhubaneswar, Inst. Phys.) ; Sakrejda, I. (LBL, Berkeley) ; Salur, S. (LBL, Berkeley) ; Sandweiss, J. (Yale U.) ; Sarkar, A. (Indian Inst. Tech., Mumbai) ; Schambach, J. (Texas U.) ; Scharenberg, R.P. (Purdue U.) ; Schmah, A.M. (LBL, Berkeley) ; Schmidke, W.B. (Brookhaven) ; Schmitz, N. (Munich, Max Planck Inst.) ; Seger, J. (Creighton U.) ; Seyboth, P. (Munich, Max Planck Inst.) ; Shah, N. (SINAP, Shanghai) ; Shahaliev, E. (Dubna, JINR) ; Shanmuganathan, P.V. (Kent State U.) ; Shao, M. (Hefei, CUST) ; Sharma, A. (Jammu U.) ; Sharma, M.K. (Jammu U.) ; Sharma, B. (Panjab U.) ; Shen, W.Q. (SINAP, Shanghai) ; Shi, S.S. (Hua-Zhong Normal U.) ; Shi, Z. (LBL, Berkeley) ; Shou, Q.Y. (SINAP, Shanghai) ; Sichtermann, E.P. (LBL, Berkeley) ; Sikora, R. (AGH-UST, Cracow) ; Simko, M. (Rez, Nucl. Phys. Inst.) ; Singha, S. (Kent State U.) ; Skoby, M.J. (Indiana U.) ; Smirnov, D. (Brookhaven) ; Smirnov, N. (Yale U.) ; Solyst, W. (Indiana U.) ; Song, L. (Houston U.) ; Sorensen, P. (Brookhaven) ; Spinka, H.M. (Argonne) ; Srivastava, B. (Purdue U.) ; Stanislaus, T.D.S. (Valparaiso U., Indiana) ; Stepanov, M. (Purdue U.) ; Stock, R. (Frankfurt U., FIAS) ; Strikhanov, M. (Moscow Phys. Eng. Inst.) ; Stringfellow, B. (Purdue U.) ; Sugiura, T. (Brookhaven) ; Sumbera, M. (Rez, Nucl. Phys. Inst.) ; Summa, B. (Penn State U.) ; Sun, Z. (Lanzhou, Inst. Modern Phys.) ; Sun, Y. (Hefei, CUST) ; Sun, X.M. (Hua-Zhong Normal U.) ; Surrow, B. (Temple U.) ; Svirida, D.N. (Moscow, ITEP) ; Tang, A.H. (Brookhaven) ; Tang, Z. (Hefei, CUST) ; Tarnowsky, T. (Michigan State U.) ; Tawfik, A. (WLCAPP, Cairo) ; Thader, J. (LBL, Berkeley) ; Thomas, J.H. (LBL, Berkeley) ; Timmins, A.R. (Houston U.) ; Tlusty, D. (Rice U.) ; Todoroki, T. (Brookhaven) ; Tokarev, M. (Dubna, JINR) ; Trentalange, S. (UCLA) ; Tribble, R.E. (Texas A-M) ; Tribedy, P. (Brookhaven) ; Tripathy, S.K. (Bhubaneswar, Inst. Phys.) ; Tsai, O.D. (UCLA) ; Ullrich, T. (Brookhaven) ; Underwood, D.G. (Argonne) ; Upsal, I. (Ohio State U.) ; Van Buren, G. (Brookhaven) ; van Nieuwenhuizen, G. (Brookhaven) ; Varma, R. (Indian Inst. Tech., Mumbai) ; Vasiliev, A.N. (Serpukhov, IHEP) ; Vertesi, R. (Rez, Nucl. Phys. Inst.) ; Videbaek, F. (Brookhaven) ; Vokal, S. (Dubna, JINR) ; Voloshin, S.A. (Wayne State U.) ; Vossen, A. (Indiana U.) ; Wang, G. (UCLA) ; Wang, F. (Purdue U.) ; Wang, J.S. (Lanzhou, Inst. Modern Phys.) ; Wang, Y. (Hua-Zhong Normal U.) ; Wang, H. (Brookhaven) ; Wang, Y. (Tsinghua U., Beijing) ; Webb, J.C. (Brookhaven) ; Webb, G. (Brookhaven) ; Wen, L. (UCLA) ; Westfall, G.D. (Michigan State U.) ; Wieman, H. (LBL, Berkeley) ; Wissink, S.W. (Indiana U.) ; Witt, R. (Naval Academy, Annapolis) ; Wu, Y. (Kent State U.) ; Xiao, Z.G. (Tsinghua U., Beijing) ; Xie, W. (Purdue U.) ; Xie, G. (Hefei, CUST) ; Xin, K. (Rice U.) ; Xu, Q.H. (Shandong U.) ; Xu, Y.F. (SINAP, Shanghai) ; Xu, H. (Lanzhou, Inst. Modern Phys.) ; Xu, Z. (Brookhaven) ; Xu, N. (LBL, Berkeley) ; Xu, J. (Hua-Zhong Normal U.) ; Yang, C. (Hefei, CUST) ; Yang, Y. (Hua-Zhong Normal U.) ; Yang, S. (Hefei, CUST) ; Yang, Y. (Taiwan, Natl. Cheng Kung U.) ; Yang, Q. (Hefei, CUST) ; Yang, Y. (Lanzhou, Inst. Modern Phys.) ; Ye, Z. (Illinois U., Chicago) ; Yi, L. (Yale U.) ; Yip, K. (Brookhaven) ; Yoo, I.K. (Pusan Natl. U.) ; Yu, N. (Hua-Zhong Normal U.) ; Zbroszczyk, H. (Warsaw U. of Tech.) ; Zha, W. (Hefei, CUST) ; Zhang, J. (Lanzhou, Inst. Modern Phys.) ; Zhang, X.P. (Tsinghua U., Beijing) ; Zhang, S. (Hefei, CUST) ; Zhang, Y. (Hefei, CUST) ; Zhang, J.B. (Hua-Zhong Normal U.) ; Zhang, Z. (SINAP, Shanghai) ; Zhang, S. (SINAP, Shanghai) ; Zhang, J. (Shandong U.) ; Zhao, J. (Purdue U.) ; Zhong, C. (SINAP, Shanghai) ; Zhou, L. (Hefei, CUST) ; Zhu, X. (Tsinghua U., Beijing) ; Zoulkarneeva, Y. (Dubna, JINR) ; Zyzak, M. (Frankfurt U., FIAS)

Pages: 8

Abstract: We present the first measurement of charge-dependent directed flow in Cu+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV. The results are presented as a function of the particle transverse momentum and pseudorapidity for different centralities. A finite difference between the directed flow of positive and negative charged particles is observed that qualitatively agrees with the expectations from the effects of the initial strong electric field between two colliding ions with different nuclear charges. The measured difference in directed flow is much smaller than that obtained from the parton-hadron-string-dynamics (PHSD) model, which suggests that most of the electric charges, i.e. quarks and antiquarks, have not yet been created during the lifetime of the strong electric field, which is of the order of, or less than, 1fm/$c$.

Web-Page: http://inspirehep.net/record/1481225/files/v1eta_10-40_v6.png; http://inspirehep.net/record/1481225/files/cuau_cartoon_v5.png; http://inspirehep.net/record/1481225/files/v1pt_10centStep_v5.png; http://inspirehep.net/record/1481225/files/v1pt_10-40_v8.png; http://inspirehep.net/record/1481225/files/arXiv:1608.04100.pdf


Note: *Brief entry*; *Temporary entry*; 8 pages, 4 figures, Submitted to Phys. Rev. Lett

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