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Jet Structure of Baryon Excess in Au+Au Collisions at sqrt(S_NN) = 200 GeV

S.S. Adler S. Afanasiev C. Aidala N.N. Ajitanand Y. Akiba A. Al-Jamel J. Alexander R. Amirikas K. Aoki Laurent Aphecetche 1 R. Armendariz S.H. Aronson R. Averbeck T.C. Awes R. Azmoun V. Babintsev A. Baldisseri K.N. Barish P.D. Barnes B. Bassalleck S. Bathe S. Batsouli V. Baublis F. Bauer A. Bazilevsky S. Belikov Y. Berdnikov S. Bhagavatula M.T. Bjorndal J.G. Boissevain H. Borel S. Borenstein M.L. Brooks D.S. Brown N. Bruner D. Bucher H. Buesching V. Bumazhnov G. Bunce J.M. Burward-Hoy S. Butsyk X. Camard J.-S. Chai P. Chand W.C. Chang S. Chernichenko C.Y. Chi J. Chiba M. Chiu I.J. Choi J. Choi R.K. Choudhury T. Chujo V. Cianciolo Y. Cobigo B.A. Cole M.P. Comets 2 P. Constantin M. Csanad T. Csorgo Jean-Pierre Cussonneau 1 D. d'Enterria K. Das G. David F. Deak H. Delagrange 1 A. Denisov A. Deshpande E.J. Desmond A. Devismes O. Dietzsch J.L. Drachenberg O. Drapier 3 A. Drees K.A. Drees R. Du Rietz A. Durum D. Dutta V. Dzhordzhadze Y.V. Efremenko K. El Chenawi A. Enokizono H. En'Yo B. Espagnon 2 S. Esumi L. Ewell D.E. Fields C. Finck F. Fleuret 3 S.L. Fokin B.D. Fox Z. Fraenkel J.E. Frantz A. Franz A.D. Frawley Y. Fukao S.-Y. Fung S. Gadrat 4 S. Garpman Marie Germain 1 T.K. Ghosh A. Glenn G. Gogiberidze M. Gonin 3 J. Gosset Y. Goto R. Granier de Cassagnac 3 N. Grau S.V. Greene M. Grosse Perdekamp W. Guryn H.-A. Gustafsson T. Hachiya J.S. Haggerty H. Hamagaki A.G. Hansen E.P. Hartouni M. Harvey K. Hasuko R. Hayano N. Hayashi X. He M. Heffner T.K. Hemmick J.M. Heuser M. Hibino P. Hidas H. Hiejima J.C. Hill R. Hobbs W. Holzmann K. Homma B. Hong A. Hoover T. Horaguchi T. Ichihara V.V. Ikonnikov K. Imai M. Inaba M. Inuzuka D. Isenhower L. Isenhower M. Ishihara M. Issah A. Isupov B.V. Jacak W.Y. Jang Y. Jeong J. Jia O. Jinnouchi B.M. Johnson S.C. Johnson K.S. Joo D. Jouan 2 F. Kajihara S. Kametani N. Kamihara M. Kaneta J.H. Kang S.S. Kapoor K. Katou T. Kawabata A. Kazantsev Steven Kelly B. Khachaturov A. Khanzadeev J. Kikuchi D.H. Kim D.J. Kim D.W. Kim E. Kim G.-B. Kim 3 H.J. Kim E. Kinney W.W. Kinnison A. Kiss E. Kistenev A. Kiyomichi K. Kiyoyama C. Klein-Boesing H. Kobayashi L. Kochenda V. Kochetkov D. Koehler T. Kohama R. Kohara B. Komkov M. Konno M. Kopytine D. Kotchetkov A. Kozlov P.J. Kroon C.H. Kuberg G.J. Kunde K. Kurita Y. Kuroki M.J. Kweon Y. Kwon G.S. Kyle R. Lacey V. Ladygin J.G. Lajoie Y.Le Bornec 2 A. Lebedev S. Leckey D.M. Lee S. Lee M.J. Leitch M.A.L. Leite X.H. Li H. Lim A. Litvinenko M.X. Liu Yehan Liu C.F. Maguire Y.I. Makdisi A. Malakhov V.I. Manko Y. Mao Gines Martinez Garcia 1 M.D. Marx H. Masui F. Matathias T. Matsumoto M.C. Mccain P.L. Mcgaughey E. Melnikov F. Messer Y. Miake J. Milan T.E. Miller A. Milov S. Mioduszewski R.E. Mischke G.C. Mishra J.T. Mitchell A.K. Mohanty D.P. Morrison J.M. Moss F. Muhlbacher D. Mukhopadhyay M. Muniruzzaman J. Murata S. Nagamiya J.L. Nagle T. Nakamura B.K. Nandi M. Nara J. Newby P. Nilsson A.S. Nyanin J. Nystrand E. O'Brien C.A. Ogilvie H. Ohnishi I.D. Ojha H. Okada K. Okada M. Ono V. Onuchin A. Oskarsson I. Otterlund K. Oyama K. Ozawa D. Pal A.P.T. Palounek V. Pantuev V.S. Pantuev V. Papavassiliou J. Park W.J. Park A. Parmar S.F. Pate H. Pei T. Peitzmann V. Penev J.-C. Peng H. Pereira V. Peresedov A. Pierson C. Pinkenburg R.P. Pisani F. Plasil M.L. Purschke A.K. Purwar J. Qualls J. Rak I. Ravinovich K.F. Read M. Reuter K. Reygers V. Riabov Y. Riabov G. Roche 4 A. Romana 3 M. Rosati S. Rosendahl P. Rosnet 4 V.L. Rykov S.S. Ryu M.E. Sadler N. Saito T. Sakaguchi M. Sakai S. Sakai V. Samsonov L. Sanfratello R. Santo H.D. Sato S. Sato S. Sawada Y. Schutz V. Semenov R. Seto M.R. Shaw T.K. Shea I. Shein T.-A. Shibata K. Shigaki T. Shiina M. Shimomura A. Sickles C.L. Silva D. Silvermyr K.S. Sim J. Simon-Gillo C.P. Singh V. Singh M. Sivertz A. Soldatov R.A. Soltz W.E. Sondheim S. Sorensen S.P. Sorensen I.V. Sourikova F. Staley P.W. Stankus E. Stenlund M. Stepanov A. Ster S.P. Stoll T. Sugitate J.P. Sullivan S. Takagi E.M. Takagui A. Taketani M. Tamai K.H. Tanaka Y. Tanaka K. Tanida M.J. Tannenbaum A. Taranenko P. Tarjan J.D. Tepe T.L. Thomas M. Togawa J. Tojo H. Torii R.S. Towell V.-N. Tram 3 I. Tserruya Y. Tsuchimoto H. Tsuruoka S.K. Tuli H. Tydesjo N. Tyurin T.J. Uam H.W. van Hecke J. Velkovska M. Velkovsky V. Veszpremi L. Villatte A.A. Vinogradov M.A. Volkov E. Vznuzdaev X.R. Wang Y. Watanabe S.N. White N. Willis 2 F.K. Wohn C.L. Woody W. Xie Y. Yang A. Yanovich S. Yokkaichi G.R. Young I.E. Yushmanov W.A. Zajc C. Zhang S. Zhou S.J. Zhou J. Zimanyi L. Zolin X. Zong
Abstract : Two particle correlations between identified meson and baryon trigger particles with 2.5 < p_T < 4.0 GeV/c and lower p_T charged hadrons have been measured at midrapidity by the PHENIX experiment at RHIC in p+p, d+Au and Au+Au collisions at sqrt(s_NN) = 200 GeV. The probability of finding a hadron near in azimuthal angle to the trigger particle is almost identical for leading mesons and baryons for non-central Au+Au. The yield for both trigger baryons and mesons is significantly higher in Au+Au than in p+p and d+Au, except for trigger baryons in central collisions. The baryon excess is likely to arise predominantly from hard scattering processes.
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S.S. Adler, S. Afanasiev, C. Aidala, N.N. Ajitanand, Y. Akiba, et al.. Jet Structure of Baryon Excess in Au+Au Collisions at sqrt(S_NN) = 200 GeV. Physical Review C, American Physical Society, 2005, 71, 051902(R)(6 p.). ⟨10.1103/PhysRevC.71.051902⟩. ⟨in2p3-00023549⟩

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