Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/87431
Type: Artigo de periódico
Title: Dielectron Mass Spectra From Au+au Collisions At Snn =200 Gev
Author: Adamczyk L.
Adkins J.K.
Agakishiev G.
Aggarwal M.M.
Ahammed Z.
Alekseev I.
Alford J.
Anson C.D.
Aparin A.
Arkhipkin D.
Aschenauer E.C.
Averichev G.S.
Banerjee A.
Barnovska Z.
Beavis D.R.
Bellwied R.
Bhasin A.
Bhati A.K.
Bhattarai P.
Bichsel H.
Bielcik J.
Bielcikova J.
Bland L.C.
Bordyuzhin I.G.
Borowski W.
Bouchet J.
Brandin A.V.
Brovko S.G.
Bultmann S.
Bunzarov I.
Burton T.P.
Butterworth J.
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 L.
Cheng J.
Cherney M.
Chikanian A.
Christie W.
Chwastowski J.
Codrington M.J.M.
Cramer J.G.
Crawford H.J.
Cui X.
Das S.
Davila Leyva A.
De Silva L.C.
Debbe R.R.
Dedovich T.G.
Deng J.
Derevschikov A.A.
Derradi De Souza R.
Dhamija S.
Di Ruzza B.
Didenko L.
Dilks C.
Ding F.
Djawotho P.
Dong X.
Drachenberg J.L.
Draper J.E.
Du C.M.
Dunkelberger L.E.
Dunlop J.C.
Efimov L.G.
Engelage J.
Engle K.S.
Eppley G.
Eun L.
Evdokimov O.
Fatemi R.
Fazio S.
Fedorisin J.
Filip P.
Finch E.
Fisyak Y.
Flores C.E.
Gagliardi C.A.
Gangadharan D.R.
Garand D.
Geurts F.
Gibson A.
Girard M.
Gliske S.
Grosnick D.
Guo Y.
Gupta A.
Gupta S.
Guryn W.
Haag B.
Hajkova O.
Hamed A.
Han L.-X.
Haque R.
Harris J.W.
Heppelmann S.
Hirsch A.
Hoffmann G.W.
Hofman D.J.
Horvat S.
Huang B.
Huang H.Z.
Huang X.
Huck P.
Humanic T.J.
Igo G.
Jacobs W.W.
Jang H.
Judd E.G.
Kabana S.
Kalinkin D.
Kang K.
Kauder K.
Ke H.W.
Keane D.
Kechechyan A.
Kesich A.
Khan Z.H.
Kikola D.P.
Kisel I.
Kisiel A.
Koetke D.D.
Kollegger T.
Konzer J.
Koralt I.
Korsch W.
Kotchenda L.
Kravtsov P.
Krueger K.
Kulakov I.
Kumar L.
Kycia R.A.
Lamont M.A.C.
Landgraf J.M.
Landry K.D.
Lauret J.
Lebedev A.
Lednicky R.
Lee J.H.
Levine M.J.
Li C.
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.
Luo X.
Ma G.L.
Ma Y.G.
Madagodagettige Don D.M.M.D.
Mahapatra D.P.
Majka R.
Margetis S.
Markert C.
Masui H.
Matis H.S.
McDonald D.
McShane T.S.
Minaev N.G.
Mioduszewski S.
Mohanty B.
Mondal M.M.
Morozov D.A.
Munhoz M.G.
Mustafa M.K.
Nandi B.K.
Nasim M.
Nayak T.K.
Nelson J.M.
Nogach L.V.
Noh S.Y.
Novak J.
Nurushev S.B.
Odyniec G.
Ogawa A.
Oh K.
Ohlson A.
Okorokov V.
Oldag E.W.
Oliveira R.A.N.
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.
Pruthi N.K.
Przybycien M.
Pujahari P.R.
Qiu H.
Quintero A.
Ramachandran S.
Raniwala R.
Raniwala S.
Ray R.L.
Riley C.K.
Ritter H.G.
Roberts J.B.
Rogachevskiy O.V.
Romero J.L.
Ross J.F.
Roy A.
Ruan L.
Rusnak J.
Sahoo N.R.
Sahu P.K.
Sakrejda I.
Salur S.
Sandacz A.
Sandweiss J.
Sangaline E.
Sarkar A.
Schambach J.
Scharenberg R.P.
Schmah A.M.
Schmidke W.B.
Schmitz N.
Seger J.
Seyboth P.
Shah N.
Shahaliev E.
Shanmuganathan P.V.
Shao M.
Sharma B.
Shen W.Q.
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.
Stevens J.R.
Stock R.
Strikhanov M.
Stringfellow B.
Suaide A.A.P.
Sumbera M.
Sun X.
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.
Tarnowsky T.
Thomas J.H.
Timmins A.R.
Tlusty D.
Tokarev M.
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 Jr. J.A.
Varma R.
Vasconcelos G.M.S.
Vasiliev A.N.
Vertesi R.
Videbaek F.
Viyogi Y.P.
Vokal S.
Vossen A.
Wada M.
Wang F.
Wang G.
Wang H.
Wang J.S.
Wang X.L.
Wang Y.
Wang Y.
Webb G.
Webb J.C.
Westfall G.D.
Wieman H.
Wissink S.W.
Witt R.
Wu Y.F.
Xiao Z.
Xie W.
Xin K.
Xu H.
Xu N.
Xu Q.H.
Xu Y.
Xu Z.
Yan W.
Yang C.
Yang Y.
Yang Y.
Ye Z.
Yepes P.
Yi L.
Yip K.
Yoo I.-K.
Zawisza Y.
Zbroszczyk H.
Zha W.
Zhang J.B.
Zhang J.L.
Zhang S.
Zhang X.P.
Zhang Y.
Zhang Z.P.
Zhao F.
Zhao J.
Zhong C.
Zhu X.
Zhu Y.H.
Zoulkarneeva Y.
Zyzak M.
Abstract: We report the STAR measurements of dielectron (e+e-) production at midrapidity (|yee|<1) in Au+Au collisions at sNN=200GeV. The measurements are evaluated in different invariant mass regions with a focus on 0.30-0.76 (ρ-like), 0.76-0.80 (ω-like), and 0.98-1.05 (φ-like) GeV/c2. The spectrum in the ω-like and φ-like regions can be well described by the hadronic cocktail simulation. In the ρ-like region, however, the vacuum ρ spectral function cannot describe the shape of the dielectron excess. In this range, an enhancement of 1.77±0.11(stat)±0.24(syst)±0. 33(cocktail) is determined with respect to the hadronic cocktail simulation that excludes the ρ meson. The excess yield in the ρ-like region increases with the number of collision participants faster than the ω and φ yields. Theoretical models with broadened ρ contributions through interactions with constituents in the hot QCD medium provide a consistent description of the dilepton mass spectra for the measurement presented here and the earlier data at the Super Proton Synchrotron energies. © 2014 American Physical Society.
Editor: American Physical Society
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.113.022301
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84904314168&partnerID=40&md5=0bd6ffa6eda66dfcfb988f2aef3fe637
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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