Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality inAu+AuCollisions atsNN=200  GeV

B I Abelev,S Lapointe,H S Matis,P Seyboth,J Balewski,R Derradi De Souza,J Sandweiss,M Shao,J W Harris,F Simon,S M Guertin,B D Anderson,A A Derevschikov,D Arkhipkin,I M Vasilevski,E Hjort,P Sorensen,D Olson,C Li,G Odyniec,B K Nandi,C L Jones,J M Landgraf,Q H Xu,R R Betts,H F Chen,M Cherney,M J Levine,B Srivastava,L Liu,A Iordanova,M Estienne,R Varma,D Prindle,P Fachini,V N Tram,C Pruneau,S S Shi,S Kabana,A Ridiger,A Bhasin,M Bombara,J Bouchet,P K Netrakanti,O V Rogachevskiy,E Finch,L Eun,J C Webb,R Redwine,M Botje,X M Sun,N L Subba,G Webb,P Jakl,A V Brandin,J Schambach,F Jin,O Barannikova,B Biritz,F Du,J Cheng,J Engelage,G W Hoffmann,D Tlusty,L G Efimov,D Staszak,A Gordon,W Xie,N K Pruthi,J Seger,D G Underwood,T D S Stanislaus,D Grosnick,A Kechechyan,M A Lisa,N Smirnov,J G Cramer,K Krueger,T Tarnowsky,L Kotchenda,Z P Zhang,M Tokarev,Y N Gorbunov,Y Panebratsev,P Djawotho,A M Hoffman,H Okada,M C Suarez,J A Vanfossen,L Ruan,A K Bhati,R Witt,R S Longacre,M Kopytine,D Thein,L Gaillard,A Stadnik,S J Lindenbaum,T J Humanic,E Elhalhuli,Y P Viyogi,J E Draper,S Zhang,H J Crawford,C Nattrass,A Rose,J Kapitan,A Feng,J Liu,J Tian,J Putschke,S Margetis,X Z Cai,A Kisiel,B Stringfellow,K Kang,J L Drachenberg,G Lin,I Sakrejda,J M Nelson,Q Wang,G Eppley,M C Cervantes,W A Love,A Gupta,S Dash,A Mischke,M J Russcher,S Bueltmann,W Christie,M Zawisza,D R Gangadharan,W Guryn,J S Wang,A Ogawa,C Perkins,R E Tribble,J C Dunlop,S Timoshenko,J Baudot,L C Bland,T Ullrich,N G Minaev,L V Nogach,P Chaloupka,V Kouchpil,Z Xu,L C De Silva,S B Nurushev,T J M Symons,S W Wissink,O Catu,T G Dedovich,R Manweiler,H Caines,D P Mahapatra,N Xu,H Z Huang,V Perevoztchikov,W R Edwards,A Shabetai,R P Scharenberg,R S Hollis,M Pachr,R Majka,D Cebra,D J Hofman,H Wieman,M Walker,N Gupta,P Filip,Y Li,W W Jacobs,Z Ahammed,L K Mangotra,O D Tsai,A M Vander Molen,G Wang,J Takahashi,B Haag,M J Skoby,T J Hallman,M Dephillips,M Strikhanov,C A Gagliardi,H Zbroszczyk,D Keane,T P Burton,A Chikanian,G D Westfall,G S Averichev,J L Romero,B Grube,A H Tang,V Fine,M R Cosentino,T Peitzmann,T S Mcshane,B E Bonner,P Kurnadi,M Wada,S Mioduszewski,Yu A Matulenko,S E Vigdor,G Van Buren,H Bichsel,Y Pandit,R Reed,V Okorokov,W Peryt,M Elnimr,R Fatemi,M M Aggarwal,B Surrow,A M Poskanzer,V I Kravtsov,M S Ganti,T Ludlam,Y Xu,E Shahaliev,P Yepes,D D Koetke,F Benedosso,V Ghazikhanian,A G Knospe,Y Zoulkarneeva,B Erazmus,H G Ritter,J Lauret,R Zoulkarneev,K Kajimoto,L Didenko,N Schmitz,A Lebedev,M Sarsour,E P Sichtermann,C Jena,A Szanto De Toledo,A Geromitsos,F Liu,E G Judd,W J Llope,J Ulery,L Huo,S Heppelmann,R Corliss,M Heinz,J Pluta,E Braidot,Y Zhang,M R Dutta Mazumdar,T Pawlak,R Cendejas,X Dong,N Li,S Raniwala,C Roy,A Kocoloski,M Van Leeuwen,A Hamed,S K Pal,M J M Codrington,T K Nayak,B S Page,S C Phatak,G Igo,Y Fisyak,S Trentalange,B Potukuchi ,M Daugherity,J Fedorišin ,Y J Sun ,Jing Zhou ,Raimond Snellings ,O Mall ,S Salur,D P Kikoła ,A Hirsch,S Chattopadhyay,J Bielčík ,N Poljak,S Vokál ,Y Wang,W M Zhang,C H Lee ,M G Munhoz,H Spinka ,M Bysterský ,W Korsch,Z Chajęcki ,E Bruna,R Raniwala,X Wang,M J Ng,J Y Chen,A Vasiliev ,L S Barnby,M Krůs ,T M Cormier,J Sowiński ,M Calderón De La Barcasánchez ,W A Leight ,R Bellwied,Y Zhao,I K Yoo ,M Betancourt ,Alexandre Alarcon Do Passo Suaide ,A Meschanin,T Sakuma,Meenakshi Sharma ,Y F Wu ,J T Mitchell ,K Choi ,Q Yue,Zhong Chen ,G L ,Z J Sun ,D Beavis ,L Kumar,Y Lu,B Hippolyte,Alexander Trattner ,J H Thomas,K S.f.f Guimaraes ,X P Zhang,Z Tang,Y G ,David Kettler ,A R Timmins,X L Wang,M Šumbera ,P Jacobs,Y Yang,W Zhan,J.b Roberts ,R Singaraju ,X Shi ,C Whitten,R Lednický ,I Selyuzhenkov,P R Pujahari,E García-Solis ,J Joseph,J Kiryluk,R Milner,O G Grebenyuk ,C Markert,W He,F Wang,F Videbæk ,R Sahoo,D Das,В Емелянов ,J Bielčíková ,S A Voloshin,J X Zuo,T Ljubičić ,J H Lee,S Dogra ,M A.c Lamont ,R F Clarke,П Кравцов ,Д А Морозов ,Stephen Baumgart ,J H Chen,V Yu Khodyrev ,P G Jones,F J M Geurts ,C Kuhn,P Ghosh,M Planinić ,G M.s Vasconcelos ,B Mohanty

doi:10.1103/physrevlett.103.172301

Abstract

Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au + Au and p + p collisions at square root of s(NN) = 200 GeV. Strong short- and long-range correlations (LRC) are seen in central Au + Au collisions. The magnitude of these correlations decrease with decreasing centrality until only short-range correlations are observed in peripheral Au + Au collisions. Both the dual parton model (DPM) and the color glass condensate (CGC) predict the existence of the long-range correlations. In the DPM, the fluctuation in the number of elementary (parton) inelastic collisions produces the LRC. In the CGC, longitudinal color flux tubes generate the LRC. The data are in qualitative agreement with the predictions of the DPM and indicate the presence of multiple parton interactions.

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