Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/106598
Type: Artigo de periódico
Title: Spin Alignment Measurements Of The K*0(892) And (1020) Vector Mesons In Heavy Ion Collisions At Snn=200 Gev
Author: 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.
Beavis D.R.
Bellwied R.
Benedosso F.
Betts R.R.
Bhardwaj S.
Bhasin A.
Bhati A.K.
Bichsel H.
Bielcik J.
Bielcikova J.
Biritz B.
Bland L.C.
Bombara M.
Bonner B.E.
Botje M.
Bouchet J.
Braidot E.
Brandin A.V.
Bueltmann S.
Burton T.P.
Bystersky M.
Cai X.Z.
Caines H.
Sanchez M.C.D.L.B.
Callner J.
Catu O.
Cebra D.
Cendejas R.
Cervantes M.C.
Chajecki Z.
Chaloupka P.
Chattopadhyay S.
Chen H.F.
Chen J.H.
Chen J.Y.
Cheng J.
Cherney M.
Chikanian A.
Choi K.E.
Christie W.
Chung S.U.
Clarke R.F.
Codrington M.J.M.
Coffin J.P.
Cormier T.M.
Cosentino M.R.
Cramer J.G.
Crawford H.J.
Das D.
Dash S.
Daugherity M.
Moura M.M.D.
Dedovich T.G.
Dephillips M.
Derevschikov A.A.
Souza R.D.D.
Didenko L.
Dietel T.
Djawotho P.
Dogra S.M.
Dong X.
Drachenberg J.L.
Draper J.E.
Du F.
Dunlop J.C.
Mazumdar M.R.D.
Edwards W.R.
Efimov L.G.
Elhalhuli E.
Elnimr M.
Emelianov V.
Engelage J.
Eppley G.
Erazmus B.
Estienne M.
Eun L.
Fachini P.
Fatemi R.
Fedorisin J.
Feng A.
Filip P.
Finch E.
Fine V.
Fisyak Y.
Gagliardi C.A.
Gaillard L.
Gangadharan D.R.
Ganti M.S.
Garcia-Solis E.
Ghazikhanian V.
Ghosh P.
Gorbunov Y.N.
Gordon A.
Grebenyuk O.
Grosnick D.
Grube B.
Guertin S.M.
Guimaraes K.S.F.F.
Gupta A.
Gupta N.
Guryn W.
Haag B.
Hallman T.J.
Hamed A.
Harris J.W.
He W.
Heinz M.
Heppelmann S.
Hippolyte B.
Hirsch A.
Hoffman A.M.
Hoffmann G.W.
Hofman D.J.
Hollis R.S.
Huang H.Z.
Hughes E.W.
Humanic T.J.
Igo G.
Iordanova A.
Jacobs P.
Jacobs W.W.
Jakl P.
Jin F.
Jones P.G.
Judd E.G.
Kabana S.
Kajimoto K.
Kang K.
Kapitan J.
Kaplan M.
Keane D.
Kechechyan A.
Kettler D.
Khodyrev V.Yu.
Kiryluk J.
Kisiel A.
Klein S.R.
Knospe A.G.
Kocoloski A.
Koetke D.D.
Kollegger T.
Kopytine M.
Kotchenda L.
Kouchpil V.
Kravtsov P.
Kravtsov V.I.
Krueger K.
Kuhn C.
Kumar A.
Kumar L.
Kurnadi P.
Lamont M.A.C.
Landgraf J.M.
Lange S.
LaPointe S.
Laue F.
Lauret J.
Lebedev A.
Lednicky R.
Lee C.-H.
LeVine M.J.
Li C.
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.
Matis H.S.
Matulenko Yu.A.
McShane T.S.
Meschanin A.
Millane J.
Miller M.L.
Minaev N.G.
Mioduszewski S.
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.
Ng M.J.
Nogach L.V.
Nurushev S.B.
Odyniec G.
Ogawa A.
Okada H.
Okorokov V.
Olson D.
Pachr M.
Pal S.K.
Panebratsev Y.
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.
Potukuchi B.V.K.S.
Prindle D.
Pruneau C.
Pruthi N.K.
Putschke J.
Qattan I.A.
Raniwala R.
Raniwala S.
Ray R.L.
Ridiger A.
Ritter H.G.
Roberts J.B.
Rogachevskiy O.V.
Romero J.L.
Rose A.
Roy C.
Ruan L.
Russcher M.J.
Rykov V.
Sahoo R.
Sakrejda I.
Sakuma T.
Salur S.
Sandweiss J.
Sarsour M.
Schambach J.
Scharenberg R.P.
Schmitz N.
Seger J.
Selyuzhenkov I.
Seyboth P.
Shabetai A.
Shahaliev E.
Shao M.
Sharma M.
Shi S.S.
Shi X.-H.
Sichtermann E.P.
Simon F.
Singaraju R.N.
Skoby M.J.
Smirnov N.
Snellings R.
Sorensen P.
Sowinski 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.
Toledo A.S.D.
Takahashi J.
Tang A.H.
Tang Z.
Tarnowsky T.
Thein D.
Thomas J.H.
Tian J.
Timmins A.R.
Timoshenko S.
Tokarev M.
Trainor T.A.
Tram V.N.
Trattner A.L.
Trentalange S.
Tribble R.E.
Tsai O.D.
Ulery J.
Ullrich T.
Underwood D.G.
Buren G.V.
Kolk N.V.D.
Leeuwen M.V.
Molen A.M.V.
Varma R.
Vasconcelos G.M.S.
Vasilevski I.M.
Vasiliev A.N.
Videbaek F.
Vigdor S.E.
Viyogi Y.P.
Vokal S.
Voloshin S.A.
Wada M.
Waggoner W.T.
Wang F.
Wang G.
Wang J.S.
Wang Q.
Wang X.
Wang X.L.
Wang Y.
Webb J.C.
Westfall G.D.
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.
Zawisza M.
Zbroszczyk H.
Zhan W.
Zhang H.
Zhang S.
Zhang W.M.
Zhang Y.
Zhang Z.P.
Zhao Y.
Zhong C.
Zhou J.
Zoulkarneev R.
Zoulkarneeva Y.
Zuo J.X.
Abstract: We present the first spin alignment measurements for the K*0(892) and (1020) vector mesons produced at midrapidity with transverse momenta up to 5 GeV/c at sNN=200 GeV at RHIC. The diagonal spin-density matrix elements with respect to the reaction plane in Au+Au collisions are ρ00=0.32±0.04 (stat) ± 0.09 (syst) for the K*0 (0.8<pT<5.0 GeV/c) and ρ00=0.34±0.02 (stat) ± 0.03 (syst) for the (0.4<pT<5.0 GeV/c) and are constant with transverse momentum and collision centrality. The data are consistent with the unpolarized expectation of 1/3 and thus no evidence is found for the transfer of the orbital angular momentum of the colliding system to the vector-meson spins. Spin alignments for K*0 and in Au+Au collisions were also measured with respect to the particle's production plane. The result, ρ00=0.41±0.02 (stat) ± 0.04 (syst), is consistent with that in p+p collisions, ρ00=0.39±0.03 (stat) ± 0.06 (syst), also measured in this work. The measurements thus constrain the possible size of polarization phenomena in the production dynamics of vector mesons. © 2008 The American Physical Society.
Editor: 
Rights: aberto
Identifier DOI: 10.1103/PhysRevC.77.061902
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-45349088511&partnerID=40&md5=db0b602d9bb639fdd09398ac80fdfbe1
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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