在质心能量\(\sqrt{s_{NN}} = 200\) GeV的金离子与金离子碰撞中，高横动量非光子电子抑制的横动量和中心度依赖性
Transverse momentum and centrality dependence of high-pT nonphotonic electron suppression in Au+Au collisions at sqrt[s NN]=200 GeV.
作者信息
Abelev B I, Aggarwal M M, Ahammed Z, Anderson B D, Arkhipkin D, Averichev G S, Bai Y, Balewski J, Barannikova O, Barnby L S, Baudot J, Baumgart S, Belaga V V, Bellingeri-Laurikainen A, Bellwied R, Benedosso F, Betts R R, Bhardwaj S, Bhasin A, Bhati A K, Bichsel H, Bielcik J, Bielcikova J, Bland L C, Blyth S-L, Bombara M, Bonner B E, Botje M, Bouchet J, Brandin A V, Bravar A, Burton T P, Bystersky M, Cadman R V, Cai X Z, Caines H, Calderón de la Barca Sánchez M, Callner J, Catu O, Cebra D, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen H F, Chen J H, Chen J Y, Cheng J, Cherney M, Chikanian A, Christie W, Chung S U, Coffin J P, Cormier T M, Cosentino M R, Cramer J G, Crawford H J, Das D, Dash S, Daugherity M, de Moura M M, Dedovich T G, Dephillips M, Derevschikov A A, Didenko L, Dietel T, Djawotho P, Dogra S M, Dong X, Drachenberg J L, Draper J E, Du F, Dunin V B, Dunlop J C, Dutta Mazumdar M R, Eckardt V, Edwards W R, Efimov L G, Emelianov V, Engelage J, Eppley G, Erazmus B, Estienne M, Fachini P, Fatemi R, Fedorisin J, Feng A, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi C A, Gaillard L, Ganti M S, Garcia-Solis E, Ghazikhanian V, Ghosh P, Gorbunov Y G, Gos H, Grebenyuk O, Grosnick D, Guertin S M, Guimaraes K S F F, Gupta N, Haag B, Hallman T J, Hamed A, Harris J W, He W, Heinz M, Henry T W, Heppelmann S, Hippolyte B, Hirsch A, Hjort E, Hoffman A M, Hoffmann G W, Hofman D, Hollis R, Horner M J, Huang H Z, Hughes E W, Humanic T J, Igo G, Iordanova A, Jacobs P, Jacobs W W, Jakl P, Jia F, Jones P G, Judd E G, Kabana S, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Kettler D, Khodyrev V Yu, Kim B C, Kiryluk J, Kisiel A, Kislov E M, Klein S R, Knospe A G, Kocoloski A, Koetke D D, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kowalik K L, Kravtsov P, Kravtsov V I, Krueger K, Kuhn C, Kulikov A I, Kumar A, Kurnadi P, Kuznetsov A A, Lamont M A C, Landgraf J M, Lange S, Lapointe S, Laue F, Lauret J, Lebedev A, Lednicky R, Lee C-H, Lehocka S, LeVine M J, Li C, Li Q, Li Y, Lin G, Lin X, Lindenbaum S J, Lisa M A, Liu F, Liu H, Liu J, Liu L, Ljubicic T, Llope W J, Longacre R S, Love W A, Lu Y, Ludlam T, Lynn D, Ma G L, Ma J G, Ma Y G, Magestro D, Mahapatra D P, Majka R, Mangotra L K, Manweiler R, Margetis S, Markert C, Martin L, Matis H S, Matulenko Yu A, McClain C J, McShane T S, Melnick Yu, Meschanin A, Millane J, Miller M L, Minaev N G, Mioduszewski S, Mironov C, Mischke A, Mitchell J, Mohanty B, Morozov D A, Munhoz M G, Nandi B K, Nattrass C, Nayak T K, Nelson J M, Nepali N S, Netrakanti P K, Nogach L V, Nurushev S B, Odyniec G, Ogawa A, Okorokov V, Oldenburg M, Olson D, Pachr M, Pal S K, Panebratsev Y, Pavlinov A I, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak S C, Planinic M, Pluta J, Poljak N, Porile N, Poskanzer A M, Potekhin M, Potrebenikova E, Potukuchi B V K S, Prindle D, Pruneau C, Putschke J, Qattan I A, Raniwala R, Raniwala S, Ray R L, Relyea D, Ridiger A, Ritter H G, Roberts J B, Rogachevskiy O V, Romero J L, Rose A, Roy C, Ruan L, Russcher M J, Sahoo R, Sakrejda I, Sakuma T, Salur S, Sandweiss J, Sarsour M, Sazhin P S, Schambach J, Scharenberg R P, Schmitz N, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shen W Q, Shimanskiy S S, Sichtermann E P, Simon F, Singaraju R N, Smirnov N, Snellings R, Sorensen P, Sowinski J, Speltz J, Spinka H M, Srivastava B, Stadnik A, Stanislaus T D S, Staszak D, Stock R, Strikhanov M, Stringfellow B, Suaide A A P, Suarez M C, Subba N L, Sumbera M, Sun X M, Sun Z, Surrow B, Symons T J M, Szanto de Toledo A, Takahashi J, Tang A H, Tarnowsky T, Thomas J H, Timmins A R, Timoshenko S, Tokarev M, Trainor T A, Trentalange S, Tribble R E, Tsai O D, Ulery J, Ullrich T, Underwood D G, Van Buren G, van der Kolk N, van Leeuwen M, Vander Molen A M, Varma R, Vasilevski I M, Vasiliev A N, Vernet R, Vigdor S E, Viyogi Y P, Vokal S, Voloshin S A, Waggoner W T, Wang F, Wang G, Wang J S, Wang X L, Wang Y, Watson J W, Webb J C, Westfall G D, Wetzler A, Whitten C, Wieman H, Wissink S W, Witt R, Wu J, Wu Y, Xu N, Xu Q H, Xu Z, Yepes P, Yoo I-K, Yue Q, Yurevich V I, Zhan W, Zhang H, Zhang W M, Zhang Y, Zhang Z P, Zhao Y, Zhong C, Zhou J, Zoulkarneev R, Zoulkarneeva Y, Zubarev A N, Zuo J X
机构信息
University of Illinois, Chicago, IL 61801, USA.
出版信息
Phys Rev Lett. 2007 May 11;98(19):192301. doi: 10.1103/PhysRevLett.98.192301. Epub 2007 May 10.
The STAR collaboration at the BNL Relativistic Heavy-Ion Collider (RHIC) reports measurements of the inclusive yield of nonphotonic electrons, which arise dominantly from semileptonic decays of heavy flavor mesons, over a broad range of transverse momenta (1.2<p(T)<10 GeV/c) in p+p, d+Au, and Au+Au collisions at sqrt[s_{NN}]=200 GeV. The nonphotonic electron yield exhibits an unexpectedly large suppression in central Au+Au collisions at high p(T), suggesting substantial heavy-quark energy loss at RHIC. The centrality and p(T) dependences of the suppression provide constraints on theoretical models of suppression.
布鲁克海文国家实验室相对论重离子对撞机（RHIC）上的STAR合作组报告了在质心能量√[sNN]=200 GeV的质子-质子（p+p）、氘核-金核（d+Au）和金核-金核（Au+Au）碰撞中，非光子电子的包容性产额的测量结果，这些非光子电子主要来自重味介子的半轻子衰变，横动量范围较宽（1.2 < pT < 10 GeV/c）。在高横动量下，中心Au+Au碰撞中的非光子电子产额出现了意外的大幅压低，这表明在RHIC中有大量的重夸克能量损失。这种压低的中心度和横动量依赖性为压低的理论模型提供了限制。
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