Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/90060
Type: Artigo de periódico
Title: Measurement Of The W→eν And Z/γ *→e +e - Production Cross Sections At Mid-rapidity In Proton-proton Collisions At √s=500gev
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.
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.
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.
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.
Morozov B.
Munhoz M.G.
Mustafa M.K.
Naglis M.
Nandi B.K.
Nasim M.
Nayak T.K.
Nogach L.V.
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.A.
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.
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 measurements of the charge-separated W +( -)→e +( -) +ν e(ν ̄e) and Z/γ *→e +e - production cross sections at mid-rapidity in proton-proton collisions at √s=500GeV. These results are based on 13.2pb -1 of data recorded in 2009 by the STAR detector at RHIC. Production cross sections for W bosons that decay via the eν channel were measured to be σ(pp→W +X)•BR(W +→e +ν e)=117.3±5.9(stat)±6.2(syst)±15.2(lumi)pb, and σ(pp→W -X)•BR(W -→e -ν ̄e)=43.3±4.6(stat)±3.4(syst) ±5.6(lumi)pb. For Z/γ * production, σ(pp→Z/γ *X)•BR(Z/γ *→e +e -)=7.7±2.1(stat)-0.9+0. 5(syst)±1.0(lumi)pb was measured for di-lepton invariant masses me +e - between 70 and 110GeV/c2. First measurements of the W cross section ratio, σ(pp→W +X)/σ(pp→W -X), at √s=500GeV are also reported. Theoretical predictions, calculated using recent parton distribution functions, are found to agree with the measured cross sections. © 2012 American Physical Society.
Editor: 
Rights: aberto
Identifier DOI: 10.1103/PhysRevD.85.092010
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84861678540&partnerID=40&md5=7f01cb73ba1c461a1974d0186570dad7
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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