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Scaling properties of azimuthal anisotropy in Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV

A. Adare S. Afanasiev C. Aidala N.N. Ajitanand Y. Akiba H. Al-Bataineh J. Alexander A. Al-Jamel K. Aoki Laurent Aphecetche 1 R. Armendariz S.H. Aronson J. Asai E. T. Atomssa 2 R. Averbeck T.C. Awes B. Azmoun V. Babintsev G. Baksay L. Baksay A. Baldisseri K.N. Barish P.D. Barnes B. Bassalleck S. Bathe S. Batsouli V. Baublis F. Bauer A. Bazilevsky S. Belikov R. Bennett Y. Berdnikov A.A. Bickley M.T. Bjorndal J.G. Boissevain H. Borel K. Boyle M.L. Brooks D.S. Brown D. Bucher H. Buesching V. Bumazhnov G. Bunce J.M. Burward-Hoy S. Butsyk S. Campbell J.-S. Chai B.S. Chang J.-L. Charvet S. Chernichenko J. Chiba C.Y. Chi M. Chiu I.J. Choi T. Chujo P. Chung A. Churyn V. Cianciolo C.R. Cleven Y. Cobigo B.A. Cole M.P. Comets 3 P. Constantin M. Csanad T. Csorgo T. Dahms K. Das G. David M.B. Deaton K. Dehmelt H. Delagrange 1 A. Denisov D. d'Enterria A. Deshpande E.J. Desmond O. Dietzsch A. Dion M. Donadelli J.L. Drachenberg O. Drapier 2 A. Drees A.K. Dubey A. Durum V. Dzhordzhadze Y.V. Efremenko J. Egdemir F. Ellinghaus W.S. Emam A. Enokizono H. En'Yo B. Espagnon 3 S. Esumi K.O. Eyser D.E. Fields M. Finger M. Finger Jr. F. Fleuret 2 S.L. Fokin B. Forestier 4 Z. Fraenkel J.E. Frantz A. Franz J. Franz A.D. Frawley K. Fujiwara Y. Fukao S.-Y. Fung T. Fusayasu S. Gadrat 4 I. Garishvili F. Gastineau 1 Marie Germain 1 A. Glenn H. Gong M. Gonin 2 J. Gosset Y. Goto R. Granier de Cassagnac 2 N. Grau S.V. Greene M. Grosse Perdekamp T. Gunji H.-A. Gustafsson T. Hachiya A. Hadj Henni 1 C. Haegemann J.S. Haggerty M.N. Hagiwara H. Hamagaki R. Han H. Harada E.P. Hartouni K. Haruna M. Harvey E. Haslum K. Hasuko R. Hayano M. Heffner T.K. Hemmick T. Hester J.M. Heuser X. He H. Hiejima J.C. Hill R. Hobbs M. Hohlmann M. Holmes W. Holzmann K. Homma B. Hong T. Horaguchi D. Hornback M.G. Hur T. Ichihara K. Imai M. Inaba Y. Inoue D. Isenhower L. Isenhower M. Ishihara T. Isobe M. Issah A. Isupov B.V. Jacak J. Jia J. Jin O. Jinnouchi B.M. Johnson K.S. Joo D. Jouan 3 F. Kajihara S. Kametani N. Kamihara J. Kamin M. Kaneta J.H. Kang H. Kanoh H. Kano T. Kawagishi D. Kawall A.V. Kazantsev Steven Kelly A. Khanzadeev J. Kikuchi D.H. Kim D.J. Kim E. Kim Y.-S. Kim E. Kinney A. Kiss E. Kistenev A. Kiyomichi J. Klay C. Klein-Boesing L. Kochenda V. Kochetkov B. Komkov M. Konno D. Kotchetkov A. Kozlov A. Kral A. Kravitz P.J. Kroon J. Kubart G.J. Kunde N. Kurihara K. Kurita M.J. Kweon Y. Kwon G.S. Kyle R. Lacey Y.-S. Lai J.G. Lajoie A. Lebedev Y. Le Bornec 3 S. Leckey D.M. Lee M.K. Lee T. Lee M.J. Leitch M.A.L. Leite B. Lenzi H. Lim T. Liska A. Litvinenko M.X. Liu X. Li X.H. Li B. Love D. Lynch C.F. Maguire Y.I. Makdisi A. Malakhov M.D. Malik V.I. Manko Y. Mao L. Masek H. Masui F. Matathias M.C. Mccain M. Mccumber P.L. Mcgaughey Y. Miake P. Mikes K. Miki T.E. Miller A. Milov S. Mioduszewski G.C. Mishra M. Mishra J.T. Mitchell M. Mitrovski A. Morreale D.P. Morrison J.M. Moss T.V. Moukhanova D. Mukhopadhyay J. Murata S. Nagamiya Y. Nagata J.L. Nagle M. Naglis I. Nakagawa Y. Nakamiya T. Nakamura K. Nakano J. Newby M. Nguyen B.E. Norman A.S. Nyanin J. Nystrand E. O'Brien S.X. Oda C.A. Ogilvie H. Ohnishi I.D. Ojha H. Okada K. Okada M. Oka O.O. Omiwade A. Oskarsson I. Otterlund M. Ouchida K. Ozawa R. Pak D. Pal A.P.T. Palounek V. Pantuev V. Papavassiliou J. Park W.J. Park S.F. Pate H. Pei J.-C. Peng H. Pereira V. Peresedov D.Yu. Peressounko C. Pinkenburg R.P. Pisani M.L. Purschke A.K. Purwar H. Qu J. Rak A. Rakotozafindrabe 2 I. Ravinovich K.F. Read S. Rembeczki M. Reuter K. Reygers V. Riabov Y. Riabov G. Roche 4 A. Romana 2 M. Rosati S.S.E. Rosendahl P. Rosnet 4 P. Rukoyatkin V.L. Rykov S.S. Ryu B. Sahlmueller N. Saito T. Sakaguchi S. Sakai H. Sakata V. Samsonov H.D. Sato S. Sato S. Sawada J. Seele R. Seidl V. Semenov R. Seto D. Sharma T.K. Shea I. Shein A. Shevel T.-A. Shibata K. Shigaki M. Shimomura T. Shohjoh K. Shoji A. Sickles C.L. Silva D. Silvermyr C. Silvestre K.S. Sim C.P. Singh V. Singh S. Skutnik M. Slunecka W.C. Smith A. Soldatov R.A. Soltz W.E. Sondheim S.P. Sorensen I.V. Sourikova F. Staley P.W. Stankus E. Stenlund M. Stepanov A. Ster S.P. Stoll T. Sugitate C. Suire 3 J.P. Sullivan J. Sziklai T. Tabaru S. Takagi E.M. Takagui A. Taketani K.H. Tanaka Y. Tanaka K. Tanida M.J. Tannenbaum A. Taranenko P. Tarjan T.L. Thomas M. Togawa A. Toia J. Tojo L. Tomasek H. Torii R.S. Towell V.-N. Tram 2 I. Tserruya Y. Tsuchimoto S.K. Tuli H. Tydesjo N. Tyurin C. Vale H. Valle H.W. van Hecke J. Velkovska R. Vertesi A.A. Vinogradov M. Virius V. Vrba E. Vznuzdaev M. Wagner D. Walker X.R. Wang Y. Watanabe J. Wessels S.N. White N. Willis 3 D. Winter C.L. Woody M. Wysocki W. Xie Y. Yamaguchi A. Yanovich Z. Yasin J. Ying S. Yokkaichi G.R. Young I. Younus I.E. Yushmanov W.A. Zajc O. Zaudtke C. Zhang S. Zhou J. Zimanyi L. Zolin
Abstract : Detailed differential measurements of the elliptic flow for particles produced in Au+Au and Cu+Cu collisions at sqrt(s_NN) = 200 GeV are presented. Predictions from perfect fluid hydrodynamics for the scaling of the elliptic flow coefficient v_2 with eccentricity, system size and transverse energy are tested and validated. For transverse kinetic energies KE_T ~ m_T-m up to ~1 GeV, scaling compatible with the hydrodynamic expansion of a thermalized fluid is observed for all produced particles. For large values of KE_T, the mesons and baryons scale separately. A universal scaling for the flow of both mesons and baryons is observed for the full transverse kinetic energy range of the data when quark number scaling is employed. In both cases the scaling is more pronounced in terms of KE_T rather than transverse momentum.
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Submitted on : Monday, June 11, 2007 - 1:38:04 PM
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A. Adare, S. Afanasiev, C. Aidala, N.N. Ajitanand, Y. Akiba, et al.. Scaling properties of azimuthal anisotropy in Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV. Physical Review Letters, American Physical Society, 2007, 98, pp.162301. ⟨10.1103/PhysRevLett.98.162301⟩. ⟨in2p3-00153576⟩

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