Measurement of electrons from open heavy-flavor hadron decays in Au+Au collisions at $$ \sqrt{s_{\textrm{NN}}} $$ = 200 GeV with the STAR detector

Author:

,Abdulhamid M. I.,Aboona B. E.,Adam J.,Adamczyk L.,Adams J. R.,Aggarwal I.,Aggarwal M. M.,Ahammed Z.,Anderson D. M.,Aschenauer E. C.,Aslam S.,Atchison J.,Bairathi V.,Baker W.,Ball Cap J. G.,Barish K.,Bellwied R.,Bhagat P.,Bhasin A.,Bhatta S.,Bielcik J.,Bielcikova J.,Brandenburg J. D.,Cai X. Z.,Caines H.,Calderón de la Barca Sánchez M.,Cebra D.,Ceska J.,Chakaberia I.,Chaloupka P.,Chan B. K.,Chang Z.,Chatterjee A.,Chen D.,Chen J.,Chen J. H.,Chen Z.,Cheng J.,Cheng Y.,Choudhury S.,Christie W.,Chu X.,Crawford H. J.,Csanád M.,Dale-Gau G.,Das A.,Daugherity M.,Deppner I. M.,Dhamija A.,Di Carlo L.,Didenko L.,Dixit P.,Dong X.,Drachenberg J. L.,Duckworth E.,Dunlop J. C.,Engelage J.,Eppley G.,Esumi S.,Evdokimov O.,Ewigleben A.,Eyser O.,Fatemi R.,Fazio S.,Feng C. J.,Feng Y.,Finch E.,Fisyak Y.,Flor F. A.,Fu C.,Gagliardi C. A.,Galatyuk T.,Geurts F.,Ghimire N.,Gibson A.,Gopal K.,Gou X.,Grosnick D.,Gupta A.,Guryn W.,Hamed A.,Han Y.,Harabasz S.,Harasty M. D.,Harris J. W.,Harrison-Smith H.,He W.,He X. H.,He Y.,Herrmann N.,Holub L.,Hu C.,Hu Q.,Hu Y.,Huang H.,Huang H. Z.,Huang S. L.,Huang T.,Huang X.,Huang Y.,Huang Y.,Humanic T. J.,Isenhower D.,Isshiki M.,Jacobs W. W.,Jalotra A.,Jena C.,Jentsch A.,Ji Y.,Jia J.,Jin C.,Ju X.,Judd E. G.,Kabana S.,Kabir M. L.,Kagamaster S.,Kalinkin D.,Kang K.,Kapukchyan D.,Keane D.,Kelsey M.,Khyzhniak Y. V.,Kikoła D. P.,Kimelman B.,Kincses D.,Kisel I.,Kiselev A.,Knospe A. G.,Ko H. S.,Kosarzewski L. K.,Kramarik L.,Kumar L.,Kumar S.,Kunnawalkam Elayavalli R.,Lacey R.,Landgraf J. M.,Lauret J.,Lebedev A.,Lee J. H.,Leung Y. H.,Lewis N.,Li C.,Li W.,Li X.,Li Y.,Li Y.,Li Z.,Liang X.,Liang Y.,Licenik R.,Lin T.,Lisa M. A.,Liu C.,Liu F.,Liu G.,Liu H.,Liu H.,Liu L.,Liu T.,Liu X.,Liu Y.,Liu Z.,Ljubicic T.,Llope W. J.,Lomicky O.,Longacre R. S.,Loyd E. M.,Lu T.,Lukow N. S.,Luo X. F.,Ma L.,Ma R.,Ma Y. G.,Magdy N.,Mallick D.,Margetis S.,Markert C.,Matis H. S.,Mazer J. A.,McNamara G.,Mi K.,Mioduszewski S.,Mohanty B.,Mondal M. M.,Mooney I.,Mukherjee A.,Nagy M. I.,Nain A. S.,Nam J. D.,Nasim M.,Neff D.,Nelson J. M.,Nemes D. B.,Nie M.,Niida T.,Nishitani R.,Nonaka T.,Odyniec G.,Ogawa A.,Oh S.,Okubo K.,Page B. S.,Pak R.,Pan J.,Pandav A.,Pandey A. K.,Pani T.,Paul A.,Pawlik B.,Pawlowska D.,Perkins C.,Pluta J.,Pokhrel B. R.,Posik M.,Protzman T.,Prozorova V.,Pruthi N. K.,Przybycien M.,Putschke J.,Qin Z.,Qiu H.,Quintero A.,Racz C.,Radhakrishnan S. K.,Raha N.,Ray R. L.,Reed R.,Ritter H. G.,Robertson C. W.,Robotkova M.,Rosales Aguilar M. A.,Roy D.,Roy Chowdhury P.,Ruan L.,Sahoo A. K.,Sahoo N. R.,Sako H.,Salur S.,Sato S.,Schmidke W. B.,Schmitz N.,Seck F-J.,Seger J.,Seto R.,Seyboth P.,Shah N.,Shanmuganathan P. V.,Shao T.,Sharma M.,Sharma N.,Sharma R.,Sharma S. R.,Sheikh A. I.,Shen D. Y.,Shen K.,Shi S. S.,Shi Y.,Shou Q. Y.,Si F.,Singh J.,Singha S.,Sinha P.,Skoby M. J.,Smirnov N.,Söhngen Y.,Song Y.,Srivastava B.,Stanislaus T. D. S.,Stefaniak M.,Stewart D. J.,Stringfellow B.,Su Y.,Suaide A. A. P.,Sumbera M.,Sun C.,Sun X.,Sun Y.,Sun Y.,Surrow B.,Sweger Z. W.,Szymanski P.,Tamis A.,Tang A. H.,Tang Z.,Tarnowsky T.,Thomas J. H.,Timmins A. R.,Tlusty D.,Todoroki T.,Tomkiel C. A.,Trentalange S.,Tribble R. E.,Tribedy P.,Truhlar T.,Trzeciak B. A.,Tsai O. D.,Tsang C. Y.,Tu Z.,Tyler J.,Ullrich T.,Underwood D. G.,Upsal I.,Van Buren G.,Vanek J.,Vassiliev I.,Verkest V.,Videbæk F.,Voloshin S. A.,Wang F.,Wang G.,Wang J. S.,Wang X.,Wang Y.,Wang Y.,Wang Y.,Wang Z.,Webb J. C.,Weidenkaff P. C.,Westfall G. D.,Wielanek D.,Wieman H.,Wilks G.,Wissink S. W.,Witt R.,Wu J.,Wu J.,Wu X.,Wu Y.,Xi B.,Xiao Z. G.,Xie G.,Xie W.,Xu H.,Xu N.,Xu Q. H.,Xu Y.,Xu Y.,Xu Z.,Xu Z.,Yan G.,Yan Z.,Yang C.,Yang Q.,Yang S.,Yang Y.,Ye Z.,Ye Z.,Yi L.,Yip K.,Yu Y.,Zbroszczyk H.,Zha W.,Zhang C.,Zhang D.,Zhang J.,Zhang S.,Zhang W.,Zhang X.,Zhang Y.,Zhang Y.,Zhang Y.,Zhang Z. J.,Zhang Z.,Zhang Z.,Zhao F.,Zhao J.,Zhao M.,Zhou C.,Zhou J.,Zhou S.,Zhou Y.,Zhu X.,Zurek M.,Zyzak M.

Abstract

Abstract We report a new measurement of the production of electrons from open heavy-flavor hadron decays (HFEs) at mid-rapidity (|y| < 0.7) in Au+Au collisions at $$ \sqrt{s_{\textrm{NN}}} $$ s NN = 200 GeV. Invariant yields of HFEs are measured for the transverse momentum range of 3.5 < pT< 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.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

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