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Minijet deformation and charge-independent two-particle correlations on momentum subspace ($\eta, \phi$) in Au-Au collisions at $\sqrt{s_{NN}}$ = 130 GeV

J. Adams M.M. Aggarwal Z. Ahammed J. Amonett B.D. Anderson D. Arkhipkin G.S. Averichev Y. Bai J. Balewski O. Barannikova L.S. Barnby J. Baudot 1 S. Bekele V.V. Belaga R. Bellwied J. Berger B.I. Bezverkhny S. Bharadwaj A.K. Bhati V.S. Batia H. Bichsel A. Billmeier L.C. Bland C.O. Blyth B.E. Bonner M. Botje A. Boucham 2 A.V. Brandin A. Bravar M. Bystersky R. V. Cadman X.Z. Cai H. Caines M. Calderon de la Barca Sanchez J. Carroll J. Castillo D. Cebra Z. Chajecki P. Chaloupka S. Chattopdhyay H.F. Chen Y. Chen J. Cheng M. Cherney A. Chikanian W. Christie J.P. Coffin 1 T.M. Cormier J.G. Cramer H.J. Crawford D. Das S. Das M.M. de Moura A.A. Derevschikov L. Didenko T. Dietel S.M. Dogra W.J. Dong X. Dong J.E. Draper F. Du A.K. Dubey V.B. Dunin J.C. Dunlop M.R. Dutta Mazumdar V. Eckardt W.R. Edwards L.G. Efimov V. Emelianov J. Engelage G. Eppley B. Erazmus 2 Magali Estienne 2 P. Fachini J. Faivre 1 R. Fatemi J. Fedorisin K. Filimonov P. Filip E. Finch V. Fine Y. Fisyak K.J. Foley K. Fomenko J. Fu C.A. Gagliardi J. Gans M.S. Ganti L. Gaudichet 2 F. Geurts V. Ghazikhanian P. Ghosh J.E. Gonzalez O. Grachov O. Grebenyuk D. Grosnick S.M. Guertin Y. Guo Anupam Gupta T.D. Gutierrez T.J. Hallman A. Hamed D. Hardtke J.W. Harris M. Heinz T.W. Henry S. Hepplemann B. Hippolyte 1 A. Hirsch E. Hjort G.W. Hoffmann H.Z Huang S.L. Huang E. Hughes T.J. Humanic G. Igo A. Ishihara P. Jacobs W.W. Jacobs M. Janik H. Jiang I. Johnson P.G. Jones E.G. Judd S. Kabana K. Kang M. Kaplan D. Keane V.Yu. Khodyrev J. Kiryluk A. Kisiel E.M. Kislov J. Klay S.R. Klein A. Klyachko D.D. Koetke T. Kollegger M. Kopytine L. Kotchenda A.D. Kovalenko M. Kramer P. Kravtsov V.I. Kravtsov K. Krueger C. Kuhn 1 A.I. Kulikov A. Kumar C.L. Kunz R. Kh.Kutuev A.A. Kuznetsov M.A.C. Lamont J.M. Landgraf S. Lange F. Laue J. Lauret A. Lebedev R. Lednicky S. Lehocka M.J. Levine C. Li Q. Li Y. Li S.J. Lindenbaum M.A. Lisa F. Liu L. Liu Q.J. Liu Z. Liu T. Ljubicic W.J. Llope H. Long R.S. Longacre M. Lopez-Noriega W.A. Love Y. Lu T. Ludlam D. Lynn G.L. Ma J.G. Ma Y.G. Ma D. Magestro S. Mahajan D.P. Mahapatra R. Majka L.K. Mangotra R. Manweiler S. Margetis C. Markert Lilian Martin 2 J.N. Marx H.S. Matis Yu.A. Matulenko C.J. Mcclain T.S. Mcshane F. Meissner Yu. Melnick A. Meschanin M.L. Miller Z. Milosevich N.G. Minaev C. Mironov A. Mischke D. Mishra J. Mitchell B. Mohanty L. Molnar C.F. Moore D.A. Morozov M.G. Munhoz B.K. Nandi S.K. Nayak T.K. Nayak J.M. Nelson P. K. Netrakanti V.A. Nikitin L.V. Nogach S.B. Nurushev G. Odyniec A. Ogawa V. Okorokov M. Oldenburg D. Olson S.K. Pal Y. Panebratsev S.Y. Panitkin A.I. Pavlinov T. Pawlak T. Peitzmann V. Perevoztchikov C. Perkins W. Peryt V.A. Petrov S.C. Phatak R. Picha J. Pluta N. Porile J. Porter A.M. Poskanzer M. Potekhin E. Potrebenikova B.V.K.S. Potukuchi D. Prindle C. Pruneau J. Putschke G. Rai G. Rakness R. Raniwala S. Raniwala O. Ravel 2 R.L. Ray S.V. Razin D. Reichhold J.G. Reid G. Renault 2 F. Retiere A. Ridiger H.G. Ritter J.B. Roberts O.V. Rogachevskiy J.L. Romero A. Rose C. Roy 2 L. Ruan R. Sahoo I. Sakrejda S. Salur J. Sandweiss I. Savin P.S. Sazhin J. Schambach R.P. Scharenberg N. Schmitz L.S. Schroeder K. Schweda J. Seger P. Seyboth E. Shahaliev M. Shao W. Shao M. Sharma W.Q. Shen K.E. Shestermanov S.S. Shimanskiy E. Sichtermann F. Simon R.N. Singaraju G. Skoro N. Smirnov R. Snellings G. Sood P. Sorensen J. Sowinski J. Speltz 1 H.M. Spinka B. Srivastava A. Stadnik S. Stanislaus R. Stock A. Stolpovsky M. Strikhanov B. Stringfellow A.A.P. Suaide E. Sugarbaker M. Sumbera B. Surrow T.J.M. Symons A. Szanto de Toledo P. Szarwas A. Tai J. Takahashi A.H. Tang T. Tarnowsky D. Thein J.H. Thomas S. Timoshenko M. Tokarev T.A. Trainor S. Trentalange R.E. Tribble O.D. Tsai J. Ulery T. Ullrich D.G. Underwood A. Urkinbaev G. van Buren M. van Leuwen A.M. Vandermolen R. Varma I.M. Vasilevski A.N. Vasiliev M. Vasiliev R. Vernet 1 S.E. Vigdor Y.P. Viyogi S. Vokal S.A. Voloshin M. Vznuzdaev W. Waggoner F. Wang Gang Wang X.L. Wang Y. Wang Z.M. Wang H. Ward J.W. Watson J.C. Webb R. Wells G.D. Westfall A. Wetzler C. Whitten Jr. H. Wieman S.W. Wissink R. Witt J. Wood N. Xu Z. Xu Z.Z. Xu E. Yamamoto P. Yepes V.I. Yurevich B. Yuting Y.V. Zanevski H. Zhang W.M. Zhang Z.P. Zhang P.A. Zolnierczuk R. Zoulkarneev J. Zoulkarneeva A.N. Zubarev
Abstract : We present first measurements of charge-independent correlations on momentum-space difference variables $\eta_1 - \eta_2$ (pseudorapidity) and $\phi_1 - \phi_2$ (azimuth) for charged primary hadrons with transverse momentum within $0.15 \leq p_t \leq 2$ GeV/$c$ and $|\eta| \leq 1.3$ from Au-Au collisions at $\sqrt{s_{NN}} = 130$ GeV. We observe strong charge-indepedendent correlations associated with minijets and elliptic flow. The width of the minijet peak on $\eta_1 - \eta_2$ increases by a factor 2.3 from peripheral to central collisions, suggesting strong coupling of partons to a longitudinally-expanding colored medium. New methods of jet analysis introduced here reveal nonperturbative medium effects in heavy ion collisions.
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J. Adams, M.M. Aggarwal, Z. Ahammed, J. Amonett, B.D. Anderson, et al.. Minijet deformation and charge-independent two-particle correlations on momentum subspace ($\eta, \phi$) in Au-Au collisions at $\sqrt{s_{NN}}$ = 130 GeV. Physical Review C, American Physical Society, 2006, 73, pp.064907. ⟨10.1103/PhysRevC.73.064907⟩. ⟨in2p3-00023360⟩

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