在质心能量平方根√sNN = 200 GeV的金离子与金离子碰撞中的部分子流和φ介子产生。
Partonic Flow and phi-Meson production in Au+Au collisions at sqrt radical sNN = 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, Grube B, 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 J, Hollis R S, 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, 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 C, 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 at Chicago, Chicago, Illinois 60607, USA.
出版信息
Phys Rev Lett. 2007 Sep 14;99(11):112301. doi: 10.1103/PhysRevLett.99.112301. Epub 2007 Sep 11.
We present first measurements of the phi-meson elliptic flow (v2(pT)) and high-statistics pT distributions for different centralities from radical sNN=200 GeV Au+Au collisions at RHIC. In minimum bias collisions the v2 of the phi meson is consistent with the trend observed for mesons. The ratio of the yields of the Omega to those of the phi as a function of transverse momentum is consistent with a model based on the recombination of thermal s quarks up to pT approximately 4 GeV/c, but disagrees at higher momenta. The nuclear modification factor (R CP) of phi follows the trend observed in the K S 0 mesons rather than in Lambda baryons, supporting baryon-meson scaling. These data are consistent with phi mesons in central Au+Au collisions being created via coalescence of thermalized s quarks and the formation of a hot and dense matter with partonic collectivity at RHIC.
我们展示了在相对论重离子对撞机（RHIC）上，金离子与金离子以质心能量(\sqrt{s_{NN}} = 200) GeV发生碰撞时，(\phi)介子椭圆流（(v_2(p_T))）的首次测量结果以及不同中心度下的高统计量(p_T)分布。在最小无偏碰撞中，(\phi)介子的(v_2)与介子所观察到的趋势一致。(\Omega)粒子与(\phi)介子产额之比作为横向动量的函数，在横向动量(p_T)约为4 GeV/c之前，与基于热(s)夸克重组的模型一致，但在更高动量下则不一致。(\phi)介子的核修正因子（(R_{CP})）遵循在(K^0_S)介子中观察到的趋势，而不是在(\Lambda)重子中观察到的趋势，支持重子 - 介子标度关系。这些数据与中心金离子与金离子碰撞中的(\phi)介子通过热化的(s)夸克聚结产生，并在RHIC形成具有部分子集体性的热密物质相一致。
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