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First Observation of the Directed Flow of D0 and D0 ̄ in Au+Au Collisions at sNN =200 GeV

  • J. Adam
  • , L. Adamczyk
  • , J. R. Adams
  • , J. K. Adkins
  • , G. Agakishiev
  • , M. M. Aggarwal
  • , Z. Ahammed
  • , I. Alekseev
  • , D. M. Anderson
  • , R. Aoyama
  • , A. Aparin
  • , E. C. Aschenauer
  • , M. U. Ashraf
  • , F. G. Atetalla
  • , A. Attri
  • , G. S. Averichev
  • , V. Bairathi
  • , K. Barish
  • , A. J. Bassill
  • , A. Behera
  • R. Bellwied, A. Bhasin, A. K. Bhati, J. Bielcik, J. Bielcikova, L. C. Bland, I. G. Bordyuzhin, J. D. Brandenburg, A. V. Brandin, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón De La Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B. K. Chan, F. H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J. H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H. J. Crawford, M. Csanád, S. Das, T. G. Dedovich, I. M. Deppner, A. A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J. L. Drachenberg, J. C. Dunlop, T. Edmonds, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, J. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, J. Fedorisin, Y. Feng, P. Filip, E. Finch, Y. Fisyak, L. Fulek, C. A. Gagliardi, T. Galatyuk, F. Geurts, A. Gibson, K. Gopal, L. Greiner, D. Grosnick, A. Gupta, W. Guryn, A. I. Hamad, A. Hamed, J. W. Harris, L. He, S. Heppelmann, S. Heppelmann, N. Herrmann, L. Holub, Y. Hong, S. Horvat, B. Huang, H. Z. Huang, S. L. Huang, T. Huang, X. Huang, T. J. Humanic, P. Huo, G. Igo, W. W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, S. Jowzaee, X. Ju, E. G. Judd, S. Kabana, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H. W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y. V. Khyzhniak, D. P. Kikoła, C. Kim, T. A. Kinghorn, I. Kisel, A. Kisiel, M. Kocan, L. Kochenda, L. K. Kosarzewski, L. Kramarik, P. Kravtsov, K. Krueger, N. Kulathunga Mudiyanselage, L. Kumar, R. Kunnawalkam Elayavalli, J. H. Kwasizur, R. Lacey, J. M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J. H. Lee, C. Li, W. Li, W. Li, X. Li, Y. Li, Y. Liang, R. Licenik, T. Lin, A. Lipiec, M. A. Lisa, F. Liu, H. Liu, P. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W. J. Llope, M. Lomnitz, R. S. Longacre, S. Luo, X. Luo, G. L. Ma, L. Ma, R. Ma, Y. G. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H. S. Matis, O. Matonoha, J. A. Mazer, K. Meehan, J. C. Mei, N. G. Minaev, S. Mioduszewski, D. Mishra, B. Mohanty, M. M. Mondal, I. Mooney, Z. Moravcova, D. A. Morozov, Md Nasim, K. Nayak, J. M. Nelson, D. B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L. V. Nogach, T. Nonaka, G. Odyniec, A. Ogawa, S. Oh, V. A. Okorokov, B. S. Page, R. Pak, Y. Panebratsev, B. Pawlik, D. Pawlowska, H. Pei, C. Perkins, R. L. Pintér, J. Pluta, J. Porter, M. Posik, N. K. Pruthi, M. Przybycien, J. Putschke, A. Quintero, S. K. Radhakrishnan, S. Ramachandran, R. L. Ray, R. Reed, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, L. Ruan, J. Rusnak, O. Rusnakova, N. R. Sahoo, P. K. Sahu, S. Salur, J. Sandweiss, J. Schambach, W. B. Schmidke, N. Schmitz, B. R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P. V. Shanmuganathan, M. Shao, F. Shen, W. Q. Shen, S. S. Shi, Q. Y. Shou, E. P. Sichtermann, S. Siejka, R. Sikora, M. Simko, J. Singh, S. Singha, D. Smirnov, N. Smirnov, W. Solyst, P. Sorensen, H. M. Spinka, B. Srivastava, T. D.S. Stanislaus, M. Stefaniak, D. J. Stewart, M. Strikhanov, B. Stringfellow, A. A.P. Suaide, T. Sugiura, M. Sumbera, B. Summa, X. M. Sun, Y. Sun, Y. Sun, B. Surrow, D. N. Svirida, M. A. Szelezniak, P. Szymanski, A. H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, A. Tawfik, J. H. Thomas, A. R. Timmins, D. Tlusty, M. Tokarev, C. A. Tomkiel, S. Trentalange, R. E. Tribble, P. Tribedy, S. K. Tripathy, O. D. Tsai, B. Tu, Z. Tu, T. Ullrich, D. G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A. N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, S. A. Voloshin, F. Wang, G. Wang, P. Wang, Y. Wang, Y. Wang, J. C. Webb, L. Wen, G. D. Westfall, H. Wieman, S. W. Wissink, R. Witt, Y. Wu, Z. G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q. H. Xu, Y. F. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Yang, Z. Ye, Z. Ye, L. Yi, K. Yip, H. Zbroszczyk, W. Zha, D. Zhang, L. Zhang, S. Zhang, S. Zhang, X. P. Zhang, Y. Zhang, Z. Zhang, J. Zhao, C. Zhong, C. Zhou, X. Zhu, Z. Zhu, M. Zurek, M. Zyzak
  • Brookhaven National Laboratory
  • AGH University of Krakow
  • Ohio State University
  • University of Kentucky
  • Joint Institute for Nuclear Research
  • Panjab University
  • Variable Energy Cyclotron Centre India
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Moscow Engineering Physics Institute
  • Texas A&M University
  • University of Tsukuba
  • Tsinghua University
  • Kent State University
  • National Institute of Science Education and Research
  • University of California at Riverside
  • Stony Brook University
  • University of Houston
  • University of Jammu
  • Czech Technical University in Prague
  • Czech Academy of Sciences
  • Shandong University
  • Rice University
  • Yale University
  • University of California at Davis
  • University of California at Los Angeles
  • National Cheng Kung University
  • Fudan University
  • University of Science and Technology of China
  • Creighton University
  • Lawrence Berkeley National Laboratory
  • University of California at Berkeley
  • Eötvös Loránd University
  • Central China Normal University
  • Heidelberg University 
  • Institute for High Energy Physics
  • Pennsylvania State University
  • Abilene Christian University
  • Purdue University
  • Wayne State University
  • University of Illinois at Chicago
  • Lehigh University
  • Southern Connecticut State University
  • Technische Universität Darmstadt
  • Valparaiso University
  • Indian Institute of Science Education and Research, Tirupati
  • American University in Cairo
  • Indiana University Bloomington
  • Warsaw University of Technology
  • Goethe University Frankfurt
  • Argonne National Laboratory
  • Chinese Academy of Sciences
  • University of Texas at Austin
  • Rutgers - The State University of New Jersey, New Brunswick
  • Indian Institute of Science Education and Research, Berhampur
  • Temple University
  • Institute of Physics Bhubaneswar
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • Indian Institute of Technology Patna
  • Universidade de São Paulo
  • Huzhou University
  • Michigan State University
  • Nile University
  • United States Naval Academy

Research output: Contribution to journalArticlepeer-review

100 Scopus citations

Abstract

We report the first measurement of rapidity-odd directed flow (v1) for D0 and D0̄ mesons at midrapidity (|y|<0.8) in Au+Au collisions at sNN=200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. In 10-80% Au+Au collisions, the slope of the v1 rapidity dependence (dv1/dy), averaged over D0 and D0̄ mesons, is -0.080±0.017(stat)±0.016(syst) for transverse momentum pT above 1.5 GeV/c. The absolute value of D0 meson dv1/dy is about 25 times larger than that for charged kaons, with 3.4σ significance. These data give a unique insight into the initial tilt of the produced matter, and offer constraints on the geometric and transport parameters of the hot QCD medium created in relativistic heavy-ion collisions.

Original languageEnglish
Article number162301
JournalPhysical Review Letters
Volume123
Issue number16
DOIs
StatePublished - Oct 16 2019

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