Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/97183
Type: Artigo de periódico
Title: Di-electron Spectrum At Mid-rapidity In P+p Collisions At √s=200 Gev
Author: Adamczyk L.
Agakishiev G.
Aggarwal M.M.
Ahammed Z.
Alakhverdyants A.V.
Alekseev I.
Alford J.
Anderson B.D.
Anson C.D.
Arkhipkin D.
Aschenauer E.
Averichev G.S.
Balewski J.
Banerjee A.
Barnovska Z.
Beavis D.R.
Bellwied R.
Betancourt M.J.
Betts R.R.
Bhasin A.
Bhati A.K.
Bichsel H.
Bielcik J.
Bielcikova J.
Bland L.C.
Bordyuzhin I.G.
Borowski W.
Bouchet J.
Brandin A.V.
Brovko S.G.
Bruna E.
Bueltmann S.
Bunzarov I.
Burton T.P.
Butterworth J.
Cai X.Z.
Caines H.
Calderon De La Barca Sanchez M.
Cebra D.
Cendejas R.
Cervantes M.C.
Chaloupka P.
Chang Z.
Chattopadhyay S.
Chen H.F.
Chen J.H.
Chen J.Y.
Chen L.
Cheng J.
Cherney M.
Chikanian A.
Christie W.
Chung P.
Chwastowski J.
Codrington M.J.M.
Corliss R.
Cramer J.G.
Crawford H.J.
Cui X.
Davila Leyva A.
De Silva L.C.
Debbe R.R.
Dedovich T.G.
Deng J.
Derradi De Souza R.
Dhamija S.
Didenko L.
Ding F.
Dion A.
Djawotho P.
Dong X.
Drachenberg J.L.
Draper J.E.
Du C.M.
Dunkelberger L.E.
Dunlop J.C.
Efimov L.G.
Elnimr M.
Engelage J.
Eppley G.
Eun L.
Evdokimov O.
Fatemi R.
Fazio S.
Fedorisin J.
Fersch R.G.
Filip P.
Finch E.
Fisyak Y.
Gagliardi C.A.
Gangadharan D.R.
Geurts F.
Gibson A.
Gliske S.
Gorbunov Y.N.
Grebenyuk O.G.
Grosnick D.
Gupta S.
Guryn W.
Haag B.
Hajkova O.
Hamed A.
Han L.-X.
Harris J.W.
Hays-Wehle J.P.
Heppelmann S.
Hirsch A.
Hoffmann G.W.
Hofman D.J.
Horvat S.
Huang B.
Huang H.Z.
Huck P.
Humanic T.J.
Huo L.
Igo G.
Jacobs W.W.
Jena C.
Joseph J.
Judd E.G.
Kabana S.
Kang K.
Kapitan J.
Kauder K.
Ke H.W.
Keane D.
Kechechyan A.
Kesich A.
Kettler D.
Kikola D.P.
Kiryluk J.
Kisiel A.
Kizka V.
Klein S.R.
Koetke D.D.
Kollegger T.
Konzer J.
Koralt I.
Koroleva L.
Korsch W.
Kotchenda L.
Kravtsov P.
Krueger K.
Kumar L.
Lamont M.A.C.
Landgraf J.M.
Lapointe S.
Lauret J.
Lebedev A.
Lednicky R.
Lee J.H.
Leight W.
Levine M.J.
Li C.
Li L.
Li W.
Li X.
Li X.
Li Y.
Li Z.M.
Lima L.M.
Lisa M.A.
Liu F.
Ljubicic T.
Llope W.J.
Longacre R.S.
Lu Y.
Luo X.
Luszczak A.
Ma G.L.
Ma Y.G.
Madagodagettige Don D.M.M.D.
Mahapatra D.P.
Majka R.
Mall O.I.
Margetis S.
Markert C.
Masui H.
Matis H.S.
McDonald D.
McShane T.S.
Mioduszewski S.
Mitrovski M.K.
Mohammed Y.
Mohanty B.
Mondal M.M.
Morozov B.
Munhoz M.G.
Mustafa M.K.
Naglis M.
Nandi B.K.
Nasim M.
Nayak T.K.
Nogach L.V.
Novak J.
Odyniec G.
Ogawa A.
Oh K.
Ohlson A.
Okorokov V.
Oldag E.W.
Oliveira R.A.N.
Olson D.
Ostrowski P.
Pachr M.
Page B.S.
Pal S.K.
Pan Y.X.
Pandit Y.
Panebratsev Y.
Pawlak T.
Pawlik B.
Pei H.
Perkins C.
Peryt W.
Pile P.
Planinic M.
Pluta J.
Plyku D.
Poljak N.
Porter J.
Poskanzer A.M.
Powell C.B.
Prindle D.
Pruneau C.
Pruthi N.K.
Przybycien M.
Pujahari P.R.
Putschke J.
Qiu H.
Raniwala R.
Raniwala S.
Ray R.L.
Redwine R.
Reed R.
Riley C.K.
Ritter H.G.
Roberts J.B.
Rogachevskiy O.V.
Romero J.L.
Ross J.F.
Ruan L.
Rusnak J.
Sahoo N.R.
Sakrejda I.
Salur S.
Sandacz A.
Sandweiss J.
Sangaline E.
Sarkar A.
Schambach J.
Scharenberg R.P.
Schmah A.M.
Schmidke B.
Schmitz N.
Schuster T.R.
Seele J.
Seger J.
Seyboth P.
Shah N.
Shahaliev E.
Shao M.
Sharma B.
Sharma M.
Shi S.S.
Shou Q.Y.
Sichtermann E.P.
Singaraju R.N.
Skoby M.J.
Smirnov D.
Smirnov N.
Solanki D.
Sorensen P.
Desouza U.G.
Spinka H.M.
Srivastava B.
Stanislaus T.D.S.
Steadman S.G.
Stevens J.R.
Stock R.
Strikhanov M.
Stringfellow B.
Suaide A.A.P.
Suarez M.C.
Sumbera M.
Sun X.M.
Sun Y.
Sun Z.
Surrow B.
Svirida D.N.
Symons T.J.M.
Szanto De Toledo A.
Takahashi J.
Tang A.H.
Tang Z.
Tarini L.H.
Tarnowsky T.
Thein D.
Thomas J.H.
Tian J.
Timmins A.R.
Tlusty D.
Tokarev M.
Trainor T.A.
Trentalange S.
Tribble R.E.
Tribedy P.
Trzeciak B.A.
Tsai O.D.
Turnau J.
Ullrich T.
Underwood D.G.
Van Buren G.
Van Nieuwenhuizen G.
Vanfossen J.A.
Varma R.
Vasconcelos G.M.S.
Videbaek F.
Viyogi Y.P.
Vokal S.
Voloshin S.A.
Vossen A.
Wada M.
Wang F.
Wang G.
Wang H.
Wang J.S.
Wang Q.
Wang X.L.
Wang Y.
Webb G.
Webb J.C.
Westfall G.D.
Whitten C.
Wieman H.
Wissink S.W.
Witt R.
Witzke W.
Wu Y.F.
Xiao Z.
Xie W.
Xin K.
Xu H.
Xu N.
Xu Q.H.
Xu W.
Xu Y.
Xu Z.
Xue L.
Yang Y.
Yang Y.
Yepes P.
Yi Y.
Yip K.
Yoo I.-K.
Zawisza M.
Zbroszczyk H.
Zhang J.B.
Zhang S.
Zhang W.M.
Zhang X.P.
Zhang Y.
Zhang Z.P.
Zhao F.
Zhao J.
Zhong C.
Zhu X.
Zhu Y.H.
Zoulkarneeva Y.
Abstract: We report on the mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via e +e - decays, from √s=200 GeV p+p collisions, measured by the large-acceptance experiment STAR at the Relativistic Heavy Ion Collider. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted ω→e +e - invariant yields are consistent with previous measurements. The mid-rapidity yields (dN/dy) of φ and J/ψ are extracted through their di-electron decay channels and are consistent with the previous measurements of φ→K +K - and J/ψ→e +e -. Our results suggest a new upper limit of the branching ratio of the η→e +e - of 1.7×10 -5 at the 90% confidence level. © 2012 American Physical Society.
Editor: 
Rights: aberto
Identifier DOI: 10.1103/PhysRevC.86.024906
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84864965637&partnerID=40&md5=273223f66a8bee4f49132fbe145a30c4
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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