Measurement of D0 Azimuthal Anisotropy at Midrapidity in Au+Au Collisions at sNN =200 GeV

L. Adamczyk,J. K. Adkins,G. Agakishiev,Madan Mohan Aggarwal,Zubayer Ahammed,N. N. Ajitanand,I. Alekseev,Derek Anderson,Ryo Aoyama,A. Aparin,D. Arkhipkin,E. C. Aschenauer,Muhammad Usman Ashraf,Anjali Attri,G. S. Averichev,X. Bai,V. Bairathi,Arabinda Behera,Rene Bellwied,Anju Bhasin,A. K. Bhati,P. Bhattarai,J. Bielcik,J. Bielcikova,L. C. Bland,I. G. Bordyuzhin,J. Bouchet,J. D. Brandenburg,A. V. Brandin,Daniel Brown,I. Bunzarov,J. Butterworth,Helen Louise Caines,M. Calderon De La Barca Sanchez,J. M. Campbell,D. Cebra,I. Chakaberia,P. Chaloupka,Z. Chang,Nedialka Chankova-Bunzarova,Arka Chatterjee,Sukalyan Chattopadhyay,X. H. Chen,Jian Chen,J. Cheng,Michael G. Cherney,W. Christie,Giacomo Contin,H. J. Crawford,S. Das,L. C. De Silva,Ramiro Debbe,T. G. Dedovich,Jun Deng,A. A. Derevschikov,L. Didenko,C. Dilks,X. Dong,J.L. Drachenberg,J. E. Draper,L. E. Dunkelberger,J. C. Dunlop,L. G. Efimov,Nicholas Elsey,J. Engelage,G. Eppley,R. Esha,S. Esumi,O. Evdokimov,Justin Ewigleben,O. Eyser,R. Fatemi,S. Fazio,Pavol Federic,P. Federicova,J. Fedorisin,Z. Feng,P. Filip,E. Finch,Y. Fisyak,C.E. Flores,Łukasz Fulek,C. A. Gagliardi,D. Garand,F. J. M. Geurts,A. Gibson,M. R. Girard,Leo Clifford Greiner,D. Grosnick,D. S. Gunarathne,Y. Guo,A. Gupta,S K Gupta,W. Guryn,Ayman Hamad,A. Hamed,Alena Harlenderova,J. W. Harris,Liang He,S. Heppelmann,A. S. Hirsch,G. W. Hoffmann,S. Horvat,Te-Chuan Huang,B. Huang,X. Huang,H. Z. Huang,T. J. Humanic,Peng Huo,G. J. Igo,W. W. Jacobs,Alexander Jentsch,J. Jia,Kun Jiang,Sedigheh Jowzaee,E. G. Judd,S. Kabana,Dmitry Kalinkin,K. Kang,K. Kauder,H. W. Ke,D. Keane,A. Kechechyan,Z. H. Khan,Daniel Kikola,Ivan Kisel,A. Kisiel,L. Kochenda,M. Kocmanek,Thorsten Kollegger,Leszek Kosarzewski,A. F. Kraishan,P. Kravtsov,K. Krueger,N. Kulathunga,Lokesh Kumar,Jakub Kvapil,Joseph Kwasizur,R. Lacey,J. M. Landgraf,K. D. Landry,J. Lauret,A. Lebedev,R. Lednický,J. H. Lee,Xiaoguang Li,C. Li,W. G. Li,Y. Li,Jindřich Lidrych,T. Lin,M. A. Lisa,Huanzhao Liu,Peifeng Liu,Yanfang Liu,F. H. Liu,T. Ljubicic,William Llope,Michael Lomnitz,R. S. Longacre,Siwei Luo,Xiaofeng Luo,G. L. Ma,L. Ma,Y. G. Ma,Rongrong Ma,Niseem Magdy,Richard Daniel Majka,Debasish Mallick,S. Margetis,Christina Markert,H. S. Matis,Kathryn Meehan,Jie Mei,Z. W. Miller,N. G. Minaev,S. Mioduszewski,D. K. Mishra,S. Mizuno,Bedangadas Mohanty,Mriganka Mouli Mondal,D A Morozov,M. K. Mustafa,Nasim,Tapan Kumar Nayak,J. M. Nelson,Maowu Nie,Grigory Nigmatkulov,Takafumi Niida,L. V. Nogach,Toshihiro Nonaka,S. B. Nurushev,G. Odyniec,A. Ogawa,K. Oh,V. A. Okorokov,D. L. Olvitt,B. S. Page,R. Pak,Y. Pandit,Y. Panebratsev,B. Pawlik,Hua Pei,C. Perkins,P. Pile,Jan Marian Pluta,K. Poniatowska,J. Porter,Matthew Posik,A. M. Poskanzer,N. K. Pruthi,Mariusz Przybycien,J. Putschke,Hao Qiu,Amilkar Quintero,S. Ramachandran,R. L. Ray,R. Reed,M.J. Rehbein,H. G. Ritter,Jay Roberts,O. V. Rogachevskiy,J. L. Romero,J.D. Roth,L. Ruan,J. Rusnak,O. Rusnakova,N. R. Sahoo,P. K. Sahu,Sevil Salur,J. Sandweiss,Miroslav Saur,J. Schambach,Alexander Schmah,W. B. Schmidke,N. Schmitz,Benjamin Schweid,Janet Elizabeth Seger,Maria Sergeeva,P. Seyboth,N. Shah,E. Shahaliev,Prashanth Shanmuganathan,M. Shao,Anjali Sharma,Monika Sharma,W. Q. Shen,Z. Shi,S. S. Shi,Q. Y. Shou,E. P. Sichtermann,Rafal Sikora,Miroslav Simko,Subhash Singha,M. J. Skoby,Nikolai Smirnov,D. Smirnov,William Solyst,L. Song,P. Sorensen,H. M. Spinka,B. K. Srivastava,T. D. S. Stanislaus,M. N. Strikhanov,B.C. Stringfellow,Tetsuro Sugiura,M Šumbera,Branden Summa,Y. J. Sun,X. M. Sun,X Sun,Bernd Surrow,D.N. Svirida,M. A. Szelezniak,A. H. Tang,Zebo Tang,A. Taranenko,T. Tarnowsky,Abdel Nasser Tawfik,J. Thäder,J. H. Thomas,A. R. Timmins,D. Tlusty,Takahito Todoroki,M. Tokarev,S. Trentalange,R. E. Tribble,Prithwish Tribedy,S. K. Tripathy,B. A. Trzeciak,O. D. Tsai,T. Ullrich,D. G. Underwood,Isaac Upsal,G. Van Buren,G. van Nieuwenhuizen,A. N. Vasiliev,F. Videbaek,S. Vokal,S. A. Voloshin,A. Vossen,G. Wang,Yi Wang,Fuqiang Wang,J. C. Webb,G. Webb,Liwen Wen,G. D. Westfall,H. H. Wieman,S. W. Wissink,R. Witt,Y. Wu,Zhigang Xiao,W. Xie,G. Xie,Jun Xu,N. Xu,Qingnian Xu,Yizhuang Xu,Z. J. Xu,Yi-feng Yang,Q. Yang,C. Yang,S. Yang,Z. Ye,L. Yi,K. Yip,I. K. Yoo,N. Yu,Hanna Paulina Zbroszczyk,W. Zha,Z. Zhang,Xing Zhang,Jingqing Zhang,S. Zhang,J.L. Zhang,Yifei Zhang,J. Zhao,C. Zhong,Lei Zhou,Chensheng Zhou,X.L. Zhu,Zhanwen Zhu,Maksym Zyzak

Measurement of D0 Azimuthal Anisotropy at Midrapidity in Au+Au Collisions at sNN =200 GeV

2017

Author(s): Adamczyk, L; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Ajitanand, NN; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Attri, A; Averichev, GS; Bai, X; Bairathi, V; Behera, A; Bellwied, R; Bhasin, A; Bhati, AK; Bhattarai, P; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Bouchet, J; Brandenburg, JD; Brandin, AV; Brown, D; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, X; Chen, JH; Chen, X; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Das, S; De Silva, LC; Debbe, RR; Dedovich, TG; Deng, J; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Draper, JE; Dunkelberger, LE; Dunlop, JC; Efimov, LG; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Federicova, P; Fedorisin, J; Feng, Z; Filip, P; Finch, E; Fisyak, Y; Flores, CE; Fulek, L; Gagliardi, CA; Garand, D | Abstract: © 2017 American Physical Society. We report the first measurement of the elliptic anisotropy (v2) of the charm meson D0 at midrapidity (|y|l1) in Au+Au collisions at sNN=200 GeV. The measurement was conducted by the STAR experiment at RHIC utilizing a new high-resolution silicon tracker. The measured D0 v2 in 0%-80% centrality Au+Au collisions can be described by a viscous hydrodynamic calculation for a transverse momentum (pT) of less than 4 GeV/c. The D0 v2 as a function of transverse kinetic energy (mT-m0, where mT=pT2+m02) is consistent with that of light mesons in 10%-40% centrality Au+Au collisions. These results suggest that charm quarks have achieved local thermal equilibrium with the medium created in such collisions. Several theoretical models, with the temperature-dependent, dimensionless charm spatial diffusion coefficient (2πTDs) in the range of ∼2-12, are able to simultaneously reproduce our D0 v2 result and our previously published results for the D0 nuclear modification factor.

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