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Jet Structure from Dihadron Correlations in d+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 K. Aoki Laurent Aphecetche 1 R. Armendariz S.H. Aronson R. Averbeck T.C. Awes V. Babintsev A. Baldisseri K.N. Barish P.D. Barnes B. Bassalleck S. Bathe S. Batsouli V. Baublis F. Bauer A. Bazilevsky S. Belikov M.T. Bjorndal J.G. Boissevain H. Borel M.L. Brooks D.S. Brown N. Bruner D. Bucher H. Buesching V. Bumazhnov G. Bunce J.M. Burward-Hoy S. Butsyk X. Camard 1 P. Chand W.C. Chang S. Chernichenko C.Y. Chi J. Chiba M. Chiu I.J. Choi R.K. Choudhury T. Chujo V. Cianciolo Y. Cobigo B.A. Cole M.P. Comets 2 P. Constantin M. Csanàd T. Csörgo Jean-Pierre Cussonneau 1 D. d'Enterria K. Das G. David F. Deàk H. Delagrange 1 A. Denisov A. Deshpande E.J. Desmond A. Devismes O. Dietzsch J.L. Drachenberg O. Drapier 3 A. Drees A. Durum D. Dutta V. Dzhordzhadze Y.V. Efremenko H. En'Yo B. Espagnon 2 S. Esumi D.E. Fields C. Finck 1 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 Marie Germain 1 A. Glenn M. Gonin 3 J. Gosset Y. Goto R. Granier de Cassagnac 3 N. Grau S.V. Greene M. Grosse Perdekamp H.-°a. Gustafsson T. Hachiya J.S. Haggerty H. Hamagaki A.G. Hansen E.P. Hartouni M. Harvey K. Hasuko R. Hayano X. He M. Heffner T.K. Hemmick J.M. Heuser 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 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 K. Katou T. Kawabata A.V. Kazantsev Steven Kelly B. Khachaturov A. Khanzadeev J. Kikuchi D.J. Kim E. Kim G.-B. Kim 3 H.J. Kim E. Kinney A. Kiss E. Kistenev A. Kiyomichi C. Klein-Boesing H. Kobayashi L. Kochenda V. Kochetkov R. Kohara B. Komkov M. Konno D. Kotchetkov A. Kozlov P.J. Kroon C.H. Kuberg G.J. Kunde K. Kurita M.J. Kweon Y. Kwon G.S. Kyle R. Lacey J.G. Lajoie Y. Le Bornec 2 A. Lebedev S. Leckey D.M. Lee M.J. Leitch M.A.L. Leite X.H. Li H. Lim A. Litvinenko M.X. Liu C.F. Maguire Y.I. Makdisi A. Malakhov V.I. Manko Y. Mao Gines Martinez Garcia 1 H. Masui F. Matathias T. Matsumoto M.C. Mccain P.L. Mcgaughey Y. Miake T.E. Miller A. Milov S. Mioduszewski G.C. Mishra J.T. Mitchell A.K. Mohanty D.P. Morrison J.M. Moss D. Mukhopadhyay M. Muniruzzaman S. Nagamiya J.L. Nagle T. Nakamura J. Newby A.S. Nyanin J. Nystrand E. O'Brien C.A. Ogilvie H. Ohnishi I.D. Ojha H. Okada K. Okada A. Oskarsson I. Otterlund K. Oyama K. Ozawa D. Pal A.P.T. Palounek V. Pantuev V. Papavassiliou J. Park W.J. Park S.F. Pate H. Pei V. Penev J.-C. Peng H. Pereira V. Peresedov A. Pierson C. Pinkenburg R.P. Pisani M.L. Purschke A.K. Purwar J.M. Qualls 1 J. Rak I. Ravinovich K.F. Read M. Reuter K. Reygers V. Riabov Y. Riabov G. Roche 4 A. Romana 3 M. Rosati S.S.E. Rosendahl P. Rosnet 4 V.L. Rykov S.S. Ryu N. Saito T. Sakaguchi S. Sakai V. Samsonov L. Sanfratello R. Santo H.D. Sato S. Sato S. Sawada Y. Schutz 1 V. Semenov R. Seto T.K. Shea I. Shein T.-A. Shibata K. Shigaki M. Shimomura A. Sickles C.L. Silva D. Silvermyr K.S. Sim 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 J.P. Sullivan 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 J. Tojo H. Torii R.S. Towell V.-N. Tram 3 I. Tserruya Y. Tsuchimoto H. Tydesjö N. Tyurin T.J. Uam H.W. van Hecke J. Velkovska M. Velkovsky V. Veszprémi 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 A. Yanovich S. Yokkaichi G.R. Young I.E. Yushmanov W.A. Zajc C. Zhang S. Zhou J. Zimànyi L. Zolin X. Zong
Abstract : Dihadron correlations at high transverse momentum in d+Au collisions at sqrt(s_NN) = 200 GeV at midrapidity are measured by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC). From these correlations we extract several structural characteristics of jets; the root-mean-squared (RMS) transverse momentum of fragmenting hadrons with respect to the jet sqrt(< j_T^2 >), the mean sine-squared angle between the scattered partons < sin^2(phi_jj) >, and the number of particles produced within the dijet that are associated with a high-p_T particle (dN/dx_E distributions). We observe that the fragmentation characteristics of jets in d+Au collisions are very similar to those in p+p collisions and that there is also little dependence on the centrality of the d+Au collision. This is consistent with the nuclear medium having little influence on the fragmentation process. Furthermore, there is no statistically significant increase in the value of < sin^2(phi_jj) > from p+p to d+Au collisions. This constrains the amount of multiple scattering that partons undergo in the cold nuclear medium before and after a hard-collision.
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Submitted on : Friday, December 16, 2005 - 5:06:38 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:18 PM

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S.S. Adler, S. Afanasiev, C. Aidala, N.N. Ajitanand, Y. Akiba, et al.. Jet Structure from Dihadron Correlations in d+Au collisions at $\sqrt{S-{NN}}$=200 GeV. Physical Review C, American Physical Society, 2006, 73, pp.054903. ⟨10.1103/PhysRevC.73.054903⟩. ⟨in2p3-00025236⟩

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