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Azimuthal anisotropy of π0 production in Au+Au collisions at √sNN=200GeV: Path-length dependence of jet quenching and the role of initial geometry

Title
Azimuthal anisotropy of π0 production in Au+Au collisions at √sNN=200GeV: Path-length dependence of jet quenching and the role of initial geometry
Authors
Adare A.Afanasiev S.Aidala C.Ajitanand N.N.Akiba Y.Al-Bataineh H.Alexander J.Aoki K.Aramaki Y.Atomssa E.T.Averbeck R.Awes T.C.Azmoun B.Babintsev V.Bai M.Baksay G.Baksay L.Barish K.N.Bassalleck B.Basye A.T.Bathe S.Baublis V.Baumann C.Bazilevsky A.Belikov S.Belmont R.Bennett R.Berdnikov A.Berdnikov Y.Bickley A.A.Bok J.S.Boyle K.Brooks M.L.Buesching H.Bumazhnov V.Bunce G.Butsyk S.Camacho C.M.Campbell S.Chen C.-H.Chi C.Y.Chiu M.Choi I.J.Choudhury R.K.Christiansen P.Chujo T.Chung P.Chvala O.Cianciolo V.Citron Z.Cole B.A.Connors M.Constantin P.Csanad M.Csorgo T.Dahms T.Dairaku S.Danchev I.Das K.Datta A.David G.Denisov A.Deshpande A.Desmond E.J.Dietzsch O.Dion A.Donadelli M.Drapier O.Drees A.Drees K.A.Durham J.M.Durum A.Dutta D.Edwards S.Efremenko Y.V.Ellinghaus F.Engelmore T.Enokizono A.En'Yo H.Esumi S.Fadem B.Fields D.E.Finger M.Fleuret F.Fokin S.L.Fraenkel Z.Frantz J.E.Franz A.Frawley A.D.Fujiwara K.Fukao Y.Fusayasu T.Garishvili I.Glenn A.Gong H.Gonin M.Goto Y.Granier De Cassagnac R.Grau N.Greene S.V.Grosse Perdekamp M.Gunji T.Gustafsson H.-A.Haggerty J.S.Hahn K.I.Hamagaki H.Hamblen J.Hanks J.Han R.Hartouni E.P.Haslum E.Hayano R.Heffner M.Hegyi S.Hemmick T.K.Hester T.He X.Hill J.C.Hohlmann M.Holzmann W.Homma K.Hong B.Horaguchi T.Hornback D.Huang S.Ichihara T.Ichimiya R.Ide J.Ikeda Y.Imai K.Inaba M.Isenhower D.Ishihara M.Isobe T.Issah M.Isupov A.Ivanischev D.Jacak B.V.Jia J.Jin J.Johnson B.M.Joo K.S.Jouan D.Jumper D.S.Kajihara F.Kametani S.Kamihara N.Kamin J.Kang J.H.Kapustinsky J.Karatsu K.Kawall D.Kawashima M.Kazantsev A.V.Kempel T.Khanzadeev A.Kijima K.M.Kim B.I.Kim D.H.Kim D.J.Kim E.J.Kim E.Kim S.H.Kim Y.J.Kinney E.Kiriluk K.Kiss A.Kistenev E.Kochenda L.Komkov B.Konno M.Koster J.Kotchetkov D.Kozlov A.Kral A.Kravitz A.Kunde G.J.Kurita K.Kurosawa M.Kwon Y.Kyle G.S.Lacey R.Lai Y.S.Lajoie J.G.Lebedev A.Lee D.M.Lee J.Lee K.B.Lee K.Lee K.S.Leitch M.J.Leite M.A.L.Leitner E.Lenzi B.Liebing P.Linden Levy L.A.Liska T.Litvinenko A.Liu H.Liu M.X.Li X.Love B.Luechtenborg R.Lynch D.Maguire C.F.Makdisi Y.I.Malakhov A.Malik M.D.Manko V.I.Mannel E.Mao Y.Masui H.Matathias F.McCumber M.McGaughey P.L.Means N.Meredith B.Miake Y.Mignerey A.C.Mikes P.Miki K.Milov A.Mishra M.Mitchell J.T.Mohanty A.K.Morino Y.Morreale A.Morrison D.P.Moukhanova T.V.Murata J.Nagamiya S.Nagle J.L.Naglis M.Nagy M.I.Nakagawa I.Nakamiya Y.Nakamura T.Nakano K.Newby J.Nguyen M.Nouicer R.Nyanin A.S.O'Brien E.Oda S.X.Ogilvie C.A.Okada K.Oka M.Onuki Y.Oskarsson A.Ouchida M.Ozawa K.Pak R.Pantuev V.Papavassiliou V.Park I.H.Park J.Park S.K.Park W.J.Pate S.F.Pei H.Peng J.-C.Pereira H.Peresedov V.Peressounko D.Y.Pinkenburg C.Pisani R.P.Proissl M.Purschke M.L.Purwar A.K.Qu H.Rak J.Rakotozafindrabe A.Ravinovich I.Read K.F.Reygers K.Riabov V.Riabov Y.Richardson E.Roach D.Roche G.Rolnick S.D.Rosati M.Rosen C.A.Rosendahl S.S.E.Rosnet P.Rukoyatkin P.Ruzicka P.Sahlmueller B.Saito N.Sakaguchi T.Sakashita K.Samsonov V.Sano S.Sato T.Sawada S.Sedgwick K.Seele J.Seidl R.Semenov A.Y.Seto R.Sharma D.Shein I.Shibata T.-A.Shigaki K.Shimomura M.Shoji K.Shukla P.Sickles A.Silva C.L.Silvermyr D.Silvestre C.Sim K.S.Singh B.K.Singh C.P.Singh V.Slunecka M.Soltz R.A.Sondheim W.E.Sorensen S.P.Sourikova I.V.Sparks N.A.Stankus P.W.Stenlund E.Stoll S.P.Sugitate T.Sukhanov A.Sziklai J.Takagui E.M.Taketani A.Tanabe R.Tanaka Y.Tanida K.Tannenbaum M.J.Tarafdar S.Taranenko A.Tarjan P.Themann H.Thomas T.L.Togawa M.Toia A.Tomasek L.Torii H.Towell R.S.Tserruya I.Tsuchimoto Y.Vale C.Valle H.Van Hecke H.W.Vazquez-Zambrano E.Veicht A.Velkovska J.Vertesi R.Vinogradov A.A.Virius M.Vrba V.Vznuzdaev E.Wang X.R.Watanabe D.Watanabe K.Watanabe Y.Wei F.Wei R.Wessels J.White S.N.Winter D.Wood J.P.Woody C.L.Wright R.M.Wysocki M.Xie W.Yamaguchi Y.L.Yamaura K.Yang R.Yanovich A.Ying J.Yokkaichi S.Young G.R.Younus I.You Z.Yushmanov I.E.Zajc W.A.Zhang C.Zhou S.Zolin L.
Ewha Authors
한인식박일흥
SCOPUS Author ID
한인식scopus
Issue Date
2010
Journal Title
Physical Review Letters
ISSN
0031-9007JCR Link
Citation
vol. 105, no. 14
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We have measured the azimuthal anisotropy of π0 production for 1<pT<18GeV/c for Au+Au collisions at √sNN=200GeV. The observed anisotropy shows a gradual decrease for 3pT7-10GeV/c, but remains positive beyond 10GeV/c. The magnitude of this anisotropy is underpredicted, up to at least ∼10GeV/c, by current perturbative QCD (PQCD) energy-loss model calculations. An estimate of the increase in anisotropy expected from initial-geometry modification due to gluon saturation effects and fluctuations is insufficient to account for this discrepancy. Calculations that implement a path-length dependence steeper than what is implied by current PQCD energy-loss models show reasonable agreement with the data. ©2010 The American Physical Society.
DOI
10.1103/PhysRevLett.105.142301
Appears in Collections:
사범대학 > 과학교육과 > Journal papers
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