Charm- and Bottom-Quark Production in Au+Au Collisions at Snn=200 GeV

N. J. Abdulameer,U. Acharya,A. Adare,C. Aidala,N. N. Ajitanand,Y. Akiba,M. Alfred,N. Apadula,H. Asano,B. Azmoun, V. Babintsev,M. Bai,N. S. Bandara,B. Bannier,K. N. Barish,S. Bathe,A. Bazilevsky,M. Beaumier,S. Beckman,R. Belmont,A. Berdnikov,Y. Berdnikov,L. Bichon,B. Blankenship,D. S. Blau,J. S. Bok,V. Borisov,K. Boyle,M. L. Brooks,J. Bryslawskyj,V. Bumazhnov,S. Campbell,V. Canoa Roman,C. H. Chen,M. Chiu,C. Y. Chi,I. J. Choi,J. B. Choi,T. Chujo,Z. Citron,M. Connors,R. Corliss,Y. Corrales Morales,M. Csanad,T. Csorgo,T. W. Danley,A. Datta,M. S. Daugherity,G. David,C. T. Dean,K. DeBlasio,K. Dehmelt,A. Denisov,A. Deshpande,E. J. Desmond,A. Dion,P. B. Diss,J. H. Do,V. Doomra,A. Drees,K. A. Drees,J. M. Durham,A. Durum,A. Enokizono,R. Esha,B. Fadem,W. Fan,N. Feege,D. E. Fields,M. Finger,D. Firak,D. Fitzgerald,S. L. Fokin,J. E. Frantz,A. Franz,A. D. Frawley,P. Gallus,C. Gal,P. Garg,H. Ge,M. Giles,F. Giordano,A. Glenn,Y. Goto,N. Grau,S. V. Greene,M. Grosse Perdekamp,T. Gunji, T. Hachiya,J. S. Haggerty,K. I. Hahn,H. Hamagaki,H. F. Hamilton,J. Hanks,S. Y. Han,M. Harvey,S. Hasegawa,T. O. S. Haseler,K. Hashimoto,T. K. Hemmick,X. He,J. C. Hill,A. Hodges,R. S. Hollis,K. Homma,B. Hong,T. Hoshino,N. Hotvedt,J. Huang,K. Imai,M. Inaba,A. Iordanova,D. Isenhower,D. Ivanishchev,B. V. Jacak,M. Jezghani,X. Jiang,Z. Ji,B. M. Johnson,D. Jouan,D. S. Jumper,S. Kanda,J. H. Kang,D. Kawall,A. V. Kazantsev,J. A. Key,V. Khachatryan,A. Khanzadeev,A. Khatiwada,B. Kimelman,C. Kim,D. J. Kim,E. J. Kim, G. W. Kim,M. Kim,T. Kim,D. Kincses,A. Kingan,E. Kistenev,R. Kitamura,J. Klatsky, D. Kleinjan,P. Kline,T. Koblesky, B. Komkov,D. Kotov,L. Kovacs,B. Kurgyis,K. Kurita,M. Kurosawa,Y. Kwon,J. G. Lajoie,D. Larionova,A. Lebedev,S. Lee,S. H. Lee,M. J. Leitch,N. A. Lewis,S. H. Lim,M. X. Liu,X. Li,D. A. Loomis,D. Lynch,S. Lokos,T. Majoros,Y. I. Makdisi,M. Makek,A. Manion,V. I. Manko,E. Mannel,M. McCumber,P. L. McGaughey,D. McGlinchey,C. McKinney,A. Meles,M. Mendoza,A. C. Mignerey,A. Milov,D. K. Mishra,J. T. Mitchell,M. Mitrankova,Iu. Mitrankov,S. Miyasaka,S. Mizuno,A. K. Mohanty,M. M. Mondal,P. Montuenga,T. Moon,D. P. Morrison,T. V. Moukhanova,A. Muhammad,B. Mulilo,T. Murakami,J. Murata,A. Mwai,K. Nagashima,J. L. Nagle,M. I. Nagy,I. Nakagawa,H. Nakagomi,K. Nakano,C. Nattrass,S. Nelson,P. K. Netrakanti,T. Niida,S. Nishimura,R. Nouicer,N. Novitzky,T. Novak,G. Nukazuka,A. S. Nyanin,E. O'Brien,C. A. Ogilvie,J. Oh,J. D. Orjuela Koop,M. Orosz,J. D. Osborn,A. Oskarsson,K. Ozawa,R. Pak,V. Pantuev,V. Papavassiliou,J. S. Park,S. Park,M. Patel,S. F. Pate,J. C. Peng,W. Peng,D. V. Perepelitsa,G. D. N. Perera,D. Yu. Peressounko,C. E. PerezLara,J. Perry,R. Petti,C. Pinkenburg,R. Pinson,R. P. Pisani,M. Potekhin,A. Pun,M. L. Purschke,P. V. Radzevich,J. Rak,N. Ramasubramanian,B. J. Ramson,I. Ravinovich,K. F. Read,D. Reynolds,V. Riabov, Y. Riabov,D. Richford,T. Rinn,S. D. Rolnick,M. Rosati,Z. Rowan,J. G. Rubin,J. Runchey,B. Sahlmueller,N. Saito,T. Sakaguchi,H. Sako,V. Samsonov,M. Sarsour,S. Sato,B. Schaefer,B. K. Schmoll,K. Sedgwick,R. Seidl,A. Sen,R. Seto,P. Sett,A. Sexton,D. Sharma,I. Shein,M. Shibata,T. A. Shibata,K. Shigaki,M. Shimomura,Z. Shi,P. Shukla,A. Sickles,C. L. Silva,D. Silvermyr,B. K. Singh,C. P. Singh,V. Singh,M. Slunecka,K. L. Smith,M. Snowball,R. A. Soltz,W. E. Sondheim,S. P. Sorensen,I. V. Sourikova,P. W. Stankus,M. Stepanov,S. P. Stoll,T. Sugitate,A. Sukhanov,T. Sumita,J. Sun,Z. Sun,J. Sziklai,R. Takahama,A. Taketani, K. Tanida,M. J. Tannenbaum,S. Tarafdar,A. Taranenko,R. Tieulent,A. Timilsina,T. Todoroki,M. Tomasek,C. L. Towell,R. Towell,R. S. Towell,I. Tserruya,Y. Ueda,B. Ujvari,H. W. van Hecke,J. Velkovska,M. Virius,V. Vrba,X. R. Wang,Z. Wang,Y. Watanabe,Y. S. Watanabe,F. Wei,A. S. White,C. P. Wong,C. L. Woody,M. Wysocki,B. Xia,L. Xue,S. Yalcin,Y. L. Yamaguchi,A. Yanovich,I. Yoon,J. H. Yoo,I. E. Yushmanov,H. Yu,W. A. Zajc,A. Zelenski,S. Zhou,L. Zou

Physical review C（2024）

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摘要

The invariant yield of electrons from open-heavy-flavor decays for 1 < p(T) < 8 GeV/c at midrapidity vertical bar y vertical bar < 0.35 in Au+Au collisions at root s(NN) = 200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider. A displaced-vertex analysis with the PHENIX silicon-vertex detector enables extraction of the fraction of charm and bottom hadron decays and unfolding of the invariant yield of parent charm and bottom hadrons. The nuclear-modification factors R-AA for electrons from charm and bottom hadron decays and heavy-flavor hadrons show both a centrality and a quark-mass dependence, indicating suppression in the quark-gluon plasma produced in these collisions that is medium sized and quark-mass dependent.

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