Measurement of D^{0} Azimuthal Anisotropy at Midrapidity in Au+Au Collisions at sqrt[s_{NN}]=200 GeV. L Adamczyk , J K Adkins , G Agakishiev , M M Aggarwal , Z Ahammed , N N Ajitanand , I Alekseev , D M Anderson , R Aoyama , A Aparin , D Arkhipkin , E C Aschenauer , M U Ashraf , A Attri , G S Averichev , X Bai , V Bairathi , A Behera , R Bellwied , A Bhasin , A K Bhati , P Bhattarai , J Bielcik , J Bielcikova , L C Bland , I G Bordyuzhin , J Bouchet , J D Brandenburg , A V Brandin , D Brown , I Bunzarov , J Butterworth , H Caines , M Calderón de la Barca Sánchez , J M Campbell , D Cebra , I Chakaberia , P Chaloupka , Z Chang , N Chankova-Bunzarova , A Chatterjee , S Chattopadhyay , X Chen , J H Chen , X Chen , J Cheng , M Cherney , W Christie , G Contin , H J Crawford , S Das , L C De Silva , R R Debbe , T G Dedovich , J 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 , N Elsey , J Engelage , G Eppley , R Esha , S Esumi , O Evdokimov , J Ewigleben , O Eyser , R Fatemi , S Fazio , P Federic , P Federicova , J Fedorisin , Z Feng , P Filip , E Finch , Y Fisyak , C E Flores , L Fulek , C A Gagliardi , D Garand , F Geurts , A Gibson , M Girard , L Greiner , D Grosnick , D S Gunarathne , Y Guo , A Gupta , S Gupta , W Guryn , A I Hamad , A Hamed , A Harlenderova , J W Harris , L He , S Heppelmann , S Heppelmann , A Hirsch , G W Hoffmann , S Horvat , T Huang , B Huang , X Huang , H Z Huang , T J Humanic , P Huo , G Igo , W W Jacobs , A Jentsch , J Jia , K Jiang , S Jowzaee , E G Judd , S Kabana , D Kalinkin , K Kang , K Kauder , H W Ke , D Keane , A Kechechyan , Z Khan , D P Kikoła , I Kisel , A Kisiel , L Kochenda , M Kocmanek , T Kollegger , L K Kosarzewski , A F Kraishan , P Kravtsov , K Krueger , N Kulathunga , L Kumar , J Kvapil , J H Kwasizur , R Lacey , J M Landgraf , K D Landry , J Lauret , A Lebedev , R Lednicky , J H Lee , X Li , C Li , W Li , Y Li , J Lidrych , T Lin , M A Lisa , H Liu , P Liu , Y Liu , F Liu , T Ljubicic , W J Llope , M Lomnitz , R S Longacre , S Luo , X Luo , G L Ma , L Ma , Y G Ma , R Ma , N Magdy , R Majka , D Mallick , S Margetis , C Markert , H S Matis , K Meehan , J C Mei , Z W Miller , N G Minaev , S Mioduszewski , D Mishra , S Mizuno , B Mohanty , M M Mondal , D A Morozov , M K Mustafa , Md Nasim , T K Nayak , J M Nelson , M Nie , G Nigmatkulov , T Niida , L V Nogach , T Nonaka , S B Nurushev , G Odyniec , A Ogawa , K Oh , V A Okorokov , D Olvitt , B S Page , R Pak , Y Pandit , Y Panebratsev , B Pawlik , H Pei , C Perkins , P Pile , J Pluta , K Poniatowska , J Porter , M Posik , A M Poskanzer , N K Pruthi , M Przybycien , J Putschke , H Qiu , A Quintero , S Ramachandran , R L Ray , R Reed , M J Rehbein , H G Ritter , J B Roberts , O V Rogachevskiy , J L Romero , J D Roth , L Ruan , J Rusnak , O Rusnakova , N R Sahoo , P K Sahu , S Salur , J Sandweiss , M Saur , J Schambach , A M Schmah , W B Schmidke , N Schmitz , B R Schweid , J Seger , M Sergeeva , P Seyboth , N Shah , E Shahaliev , P V Shanmuganathan , M Shao , A Sharma , M K Sharma , W Q Shen , Z Shi , S S Shi , Q Y Shou , E P Sichtermann , R Sikora , M Simko , S Singha , M J Skoby , N Smirnov , D Smirnov , W Solyst , L Song , P Sorensen , H M Spinka , B Srivastava , T D S Stanislaus , M Strikhanov , B Stringfellow , T Sugiura , M Sumbera , B Summa , Y Sun , X M Sun , X Sun , B Surrow , D N Svirida , M A Szelezniak , A H Tang , Z Tang , A Taranenko , T Tarnowsky , A Tawfik , J Thäder , J H Thomas , A R Timmins , D Tlusty , T Todoroki , M Tokarev , S Trentalange , R E Tribble , P Tribedy , S K Tripathy , B A Trzeciak , O D Tsai , T Ullrich , D G Underwood , I Upsal , G Van Buren , G van Nieuwenhuizen , A N Vasiliev , F Videbæk , S Vokal , S A Voloshin , A Vossen , G Wang , Y Wang , F Wang , Y Wang , J C Webb , G Webb , L Wen , G D Westfall , H Wieman , S W Wissink , R Witt , Y Wu , Z G Xiao , W Xie , G Xie , J Xu , N Xu , Q H Xu , Y F Xu , Z Xu , Y Yang , Q Yang , C Yang , S Yang , Z Ye , Z Ye , L Yi , K Yip , I-K Yoo , N Yu , H Zbroszczyk , W Zha , Z Zhang , X P Zhang , J B Zhang , S Zhang , J Zhang , Y Zhang , J Zhang , S Zhang , J Zhao , C Zhong , L Zhou , C Zhou , X Zhu , Z Zhu , M Zyzak PHYSICAL REVIEW LETTERS（2017）
摘要
We report the first measurement of the elliptic anisotropy (v(2)) of the charm meson D-0 at midrapidity (broken vertical bar y broken vertical bar < 1) in Au + Au collisions at root S-NN = 200 GeV. The measurement was conducted by the STAR experiment at RHIC utilizing a new high- resolution silicon tracker. The measured D-0 v(2) in 0%-80% centrality Au + Au collisions can be described by a viscous hydrodynamic calculation for a transverse momentum (p(T)) of less than 4 GeV/c. The D-0 v(2) as a function of transverse kinetic energy (m(T) - m(0), where m(T) = root p(T)(2) + m(0)(2) p) 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 (2 pi TDs) in the range of similar to 2-12, are able to simultaneously reproduce our D-0 v(2) result and our previously published results for the D-0 nuclear modification factor.
更多 查看译文
AI 理解论文
溯源树
样例
