在质心能量为√sNN = 200 GeV的质子-质子和金离子-金离子碰撞中奇异重子共振的产生。

Strange baryon resonance production in sqrt s NN=200 GeV p+p and Au+Au collisions.

作者信息

Abelev B I, Aggarwal M M, Ahammed Z, Amonett J, Anderson B D, Anderson M, Arkhipkin D, Averichev G S, Bai Y, Balewski J, Barannikova O, Barnby L S, Baudot J, Bekele S, Belaga V V, Bellingeri-Laurikainen A, Bellwied R, Benedosso F, Bhardwaj S, Bhasin A, Bhati A K, Bichsel H, Bielcik J, Bielcikova J, Bland L C, Blyth S-L, 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, Castillo J, Catu O, Cebra D, Chajecki Z, Chaloupka P, Chattopadhyay S, Chen H F, Chen J H, Cheng J, Cherney M, Chikanian A, Christie W, Coffin J P, Cormier T M, Cosentino M R, Cramer J G, Crawford H J, Das D, Das S, 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 W J, Dong X, 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, Filimonov K, Filip P, Finch E, Fine V, Fisyak Y, Fu J, Gagliardi C A, Gaillard L, Ganti M S, Gaudichet L, Ghazikhanian V, Ghosh P, Gonzalez J E, Gorbunov Y G, Gos H, Grebenyuk O, Grosnick D, Guertin S M, Guimaraes K S F F, Gupta N, Gutierrez T D, Haag B, Hallman T J, Hamed A, Harris J W, He W, Heinz M, Henry T W, Hepplemann S, Hippolyte B, Hirsch A, Hjort E, Hoffman A M, Hoffmann G W, Horner M J, Huang H Z, Huang S L, Hughes E W, Humanic T J, Igo G, Jacobs P, Jacobs W W, Jakl P, Jia F, Jiang H, Jones P G, Judd E G, Kabana S, Kang K, Kapitan J, Kaplan M, Keane D, Kechechyan A, Khodyrev V Yu, Kim B C, Kiryluk J, Kisiel A, Kislov E M, Klein S R, Kocoloski A, Koetke D D, Kollegger T, Kopytine M, Kotchenda L, Kouchpil V, Kowalik K L, Kramer M, Kravtsov P, Kravtsov V I, Krueger K, Kuhn C, Kulikov A I, Kumar A, 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, Liu Z, Ljubicic T, Llope W J, Long H, 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, Mishra D K, Mitchell J, Mohanty B, Molnar L, Moore C F, Morozov D A, Munhoz M G, Nandi B K, Nattrass C, Nayak T K, Nelson J M, 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, Panitkin S Y, Pavlinov A I, Pawlak T, Peitzmann T, Perevoztchikov V, Perkins C, Peryt W, Phatak S C, Picha R, Planinic M, Pluta J, Poljak N, Porile N, Porter J, Poskanzer A M, Potekhin M, Potrebenikova E, Potukuchi B V K S, Prindle D, Pruneau C, Putschke J, Rakness G, Raniwala R, Raniwala S, Ray R L, Razin S V, Reinnarth J, Relyea D, Retiere F, 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, Sakuma T, Salur S, Sandweiss J, Sarsour M, Sazhin P S, Schambach J, Scharenberg R P, Schmitz N, Schweda K, Seger J, Selyuzhenkov I, Seyboth P, Shabetai A, Shahaliev E, Shao M, Sharma M, Shen W Q, Shimanskiy S S, Sichtermann E, Simon F, Singaraju R N, Smirnov N, Snellings R, Sood G, Sorensen P, Sowinski J, Speltz J, Spinka H M, Srivastava B, Stadnik A, Stanislaus T D S, Stock R, Stolpovsky A, Strikhanov M, Stringfellow B, Suaide A A P, Sugarbaker E, Sumbera M, Sun Z, Surrow B, Swanger M, Symons T J M, Szanto de Toledo A, Tai A, Takahashi J, Tang A H, Tarnowsky T, Thein D, 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, Buren G Van, van der Kolk N, van Leeuwen M, Molen A M Vander, 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, Wood J, Wu J, Xu N, Xu Q H, Xu Z, Yepes P, Yoo I-K, Yurevich V I, Zhan W, Zhang H, Zhang W M, Zhang Y, Zhang Z P, Zhao Y, Zhong C, Zoulkarneev R, Zoulkarneeva Y, Zubarev A N, Zuo J X

机构信息

Yale University, New Haven, Connecticut 06520, USA.

出版信息

Phys Rev Lett. 2006 Sep 29;97(13):132301. doi: 10.1103/PhysRevLett.97.132301. Epub 2006 Sep 25.

DOI:10.1103/PhysRevLett.97.132301

PMID:17026027

Abstract

We report the measurements of Sigma(1385) and Lambda(1520) production in p+p and Au+Au collisions at sqrt[s{NN}]=200 GeV from the STAR Collaboration. The yields and the p(T) spectra are presented and discussed in terms of chemical and thermal freeze-out conditions and compared to model predictions. Thermal and microscopic models do not adequately describe the yields of all the resonances produced in central Au+Au collisions. Our results indicate that there may be a time span between chemical and thermal freeze-out during which elastic hadronic interactions occur.

摘要

我们报告了STAR合作组在质心能量√[s{NN}]=200 GeV的质子-质子（p+p）和金-金（Au+Au）碰撞中对西格玛（1385）和拉姆达（1520）产生的测量结果。给出了产额和横动量（p(T)）谱，并根据化学和热冻结条件进行了讨论，并与模型预测进行了比较。热模型和微观模型不能充分描述中心金-金碰撞中产生的所有共振态的产额。我们的结果表明，在化学冻结和热冻结之间可能存在一个时间段，在此期间发生弹性强子相互作用。