Measurement of electrons from open heavy-flavor hadron decays in Au plus Au collisions at sNN=200 GeV with the STAR detector
M. I. Abdulhamid,B. E. Aboona,J. Adam,L. Adamczyk,J. R. Adams,I. Aggarwal,M. M. Aggarwal,Z. Ahammed,D. M. Anderson,E. C. Aschenauer,S. Aslam,J. Atchison,V. Bairathi,W. Baker,J. G. Ball Cap,K. Barish,R. Bellwied,P. Bhagat,A. Bhasin,S. Bhatta,J. Bielcik,J. Bielcikova,J. D. Brandenburg,J. Butterworth,X. Z. Cai,H. Caines,M. Calderon de la Barca Sanchez,D. Cebra,J. Ceska,I. Chakaberia,P. Chaloupka,B. K. Chan,Z. Chang,A. Chatterjee,D. Chen,J. Chen,J. H. Chen,Z. Chen,J. Cheng,Y. Cheng,S. Choudhury,W. Christie,X. Chu,H. J. Crawford,M. Csanad,G. Dale-Gau,A. Das,M. Daugherity,I. M. Deppner,A. Dhamija,L. Di Carlo,L. Didenko,P. Dixit,X. Dong,J. L. Drachenberg,E. Duckworth,J. C. Dunlop,J. Engelage,G. Eppley,S. Esumi,O. Evdokimov,A. Ewigleben,O. Eyser,R. Fatemi,S. Fazio,C. J. Feng,Y. Feng,E. Finch,Y. Fisyak,F. A. Flor,C. Fu,C. A. Gagliardi,T. Galatyuk,F. Geurts,N. Ghimire,A. Gibson,K. Gopal,X. Gou,D. Grosnick,Y. Guo,A. Gupta,W. Guryn,A. Hamed,Y. Han,S. Harabasz,M. D. Harasty,J. W. Harris,H. Harrison-Smith,W. He,X. H. He,Y. He,N. Herrmann,L. Holub,C. Hu,Q. Hu,Y. Hu,B. Huang,H. Huang,H. Z. Huang,S. L. Huang,T. Huang,X. Huang,Y. Huang,P. Huck,T. J. Humanic,D. Isenhower,M. Isshiki,W. W. Jacobs,A. Jalotra,C. Jena,A. Jentsch,Y. Ji,J. Jia,C. Jin,X. Ju,E. G. Judd,S. Kabana,M. L. Kabir,S. Kagamaster,D. Kalinkin,K. Kang,D. Kapukchyan,K. Kauder,H. W. Ke,D. Keane,M. Kelsey,Y. Khyzhniak,D. P. Kikola,B. Kimelman,D. Kincses,I. Kisel,A. Kiselev,A. G. Knospe,H. S. Ko,L. K. Kosarzewski,L. Kramarik,L. Kumar,S. Kumar,R. Kunnawalkam Elayavalli,R. Lacey,J. M. Landgraf,J. Lauret,A. Lebedev,J. H. Lee,Y. H. Leung,N. Lewis,C. Li,W. Li,X. Li,Y. Li,Z. Li,X. Liang,Y. Liang,R. Licenik,T. Lin,M. A. Lisa,C. Liu,F. Liu,G. Liu,H. Liu,L. Liu,T. Liu,X. Liu,Y. Liu,Z. Liu,T. Ljubicic,W. J. Llope,O. Lomicky,R. S. Longacre,E. M. Loyd,T. Lu,N. S. Lukow,X. F. Luo,L. Ma,R. Ma,Y. G. Ma,N. Magdy,D. Mallick,S. Margetis,C. Markert,H. S. Matis,J. A. Mazer,G. McNamara,K. Mi,S. Mioduszewski,B. Mohanty,M. M. Mondal,I. Mooney,A. Mukherjee,M. I. Nagy,A. S. Nain,J. D. Nam,Md. Nasim,D. Neff,J. M. Nelson,D. B. Nemes,M. Nie,T. Niida,R. Nishitani,T. Nonaka,G. Odyniec,A. Ogawa,S. Oh,K. Okubo,B. S. Page,R. Pak,J. Pan,A. Pandav,A. K. Pandey,T. Pani,A. Paul,B. Pawlik,D. Pawlowska,C. Perkins,J. Pluta,B. R. Pokhrel,M. Posik,T. Protzman,V. Prozorova,N. K. Pruthi,M. Przybycien,J. Putschke,Z. Qin,H. Qiu,A. Quintero,C. Racz,S. K. Radhakrishnan,N. Raha,R. L. Ray,R. Reed,H. G. Ritter,C. W. Robertson,M. Robotkova,M. A. Rosales Aguilar,D. Roy,P. Roy Chowdhury,L. Ruan,A. K. Sahoo,N. R. Sahoo,H. Sako,S. Salur,S. Sato,W. B. Schmidke,N. Schmitz,F-J. Seck,J. Seger,R. Seto,P. Seyboth,N. Shah,P. V. Shanmuganathan,T. Shao,M. Sharma,N. Sharma,R. Sharma,S. R. Sharma,A. I. Sheikh,D. Y. Shen,K. Shen,S. S. Shi,Y. Shi,Q. Y. Shou,F. Si,J. Singh,S. Singha,P. Sinha,M. J. Skoby,N. Smirnov,Y. Soehngen,Y. Song,B. Srivastava,T. D. S. Stanislaus,M. Stefaniak,D. J. Stewart,B. Stringfellow,Y. Su,A. A. P. Suaide,M. Sumbera,C. Sun,X. Sun,Y. Sun,B. Surrow,Z. W. Sweger,P. Szymanski,A. Tamis,A. H. Tang,Z. Tang,T. Tarnowsky,J. H. Thomas,A. R. Timmins,D. Tlusty,T. Todoroki,C. A. Tomkiel,S. Trentalange,R. E. Tribble,P. Tribedy,T. Truhlar,B. A. Trzeciak,O. D. Tsai,C. Y. Tsang,Z. Tu,T. Ullrich,D. G. Underwood,I. Upsal,G. Van Buren,J. Vanek,I. Vassiliev,V. Verkest,F. Videbaek,S. A. Voloshin,F. Wang,G. Wang,J. S. Wang,X. Wang,Y. Wang,Z. Wang,J. C. Webb,P. C. Weidenkaff,G. D. Westfall,D. Wielanek,H. Wieman,G. Wilks,S. W. Wissink,R. Witt,J. Wu,X. Wu,Y. Wu,B. Xi,Z. G. Xiao,G. Xie,W. Xie,H. Xu,N. Xu,Q. H. Xu,Y. Xu,Z. Xu,G. Yan,Z. Yan,C. Yang,Q. Yang,S. Yang,Y. Yang,Z. Ye,L. Yi,K. Yip,Y. Yu,H. Zbroszczyk,W. Zha,C. Zhang,D. Zhang,J. Zhang,S. Zhang,W. Zhang,X. Zhang,Y. Zhang,Z. J. Zhang,Z. Zhang,F. Zhao,J. Zhao,M. Zhao,C. Zhou,J. Zhou,S. Zhou,Y. Zhou,X. Zhu,M. Zurek,M. Zyzak
JOURNAL OF HIGH ENERGY PHYSICS（2023）
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摘要
We report a new measurement of the production of electrons from open heavy-flavor hadron decays (HFEs) at mid-rapidity (vertical bar y vertical bar < 0.7) in Au+Au collisions at root s(NN) = 200 GeV. Invariant yields of HFEs are measured for the transverse momentum range of 3.5 < p(T) < 9 GeV/c in various configurations of the collision geometry. The HFE yields in head-on Au+Au collisions are suppressed by approximately a factor of 2 compared to that in p+ p collisions scaled by the average number of binary collisions, indicating strong interactions between heavy quarks and the hot and dense medium created in heavy-ion collisions. Comparison of these results with models provides additional tests of theoretical calculations of heavy quark energy loss in the quark-gluon plasma.
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关键词
Heavy Ion Experiments,Heavy Quark Production,Heavy-Ion Collision
