Distributions Of Charged Hadrons Associated With High Transverse Momentum Particles In Pp And Au Plus Au Collisions At Root(S)(Nn)=200 Gev

J. Adams,C. Adler,M. M. Aggarwal, Z. Ahammed,J. Amonett,B. D. Anderson,D. Arkhipkin,G. S. Averichev,S. K. Badyal,J. Balewski,O. Barannikova,L. S. Barnby,J. Baudot,S. Bekele,V. V. Belaga, R. Bellwied,J. Berger,B. I. Bezverkhny,S. Bhardwaj, A. K. Bhati,H. Bichsel,A. Billmeier,L. C. Bland,C. O. Blyth,B. E. Bonner,M. Botje,A. Boucham,A. Brandin,A. Bravar,R. V. Cadman,X. Z. Cai, H. Caines,M. Calderón de la Barca Sánchez,J. Carroll,J. Castillo, D. Cebra,P. Chaloupka,S. Chattopadhyay,H. F. Chen, Y. Chen,S. P. Chernenko,M. Cherney, A. Chikanian,W. Christie,J. P. Coffin,T. M. Cormier,J. G. Cramer,H. J. Crawford,D. Das,S. Das,A. A. Derevschikov,L. Didenko,T. Dietel,W. J. Dong, X. Dong,J. E. Draper,F. Du,A. K. Dubey,V. B. Dunin,J. C. Dunlop,M. R. Dutta Majumdar,V. Eckardt,L. G. Efimov,V. Emelianov,J. Engelage,G. Eppley,B. Erazmus,M. Estienne,P. Fachini,V. Faine,J. Faivre,R. Fatemi,K. Filimonov,P. Filip,E. Finch,Y. Fisyak,D. Flierl,K. J. Foley,J. Fu,C. A. Gagliardi,N. Gagunashvili,J. Gans,M. S. Ganti,L. Gaudichet,F. Geurts,V. Ghazikhanian,P. Ghosh,J. E. Gonzalez,O. Grachov,O. Grebenyuk,S. Gronstal,D. Grosnick,S. M. Guertin, A. Gupta,T. D. Gutierrez,T. J. Hallman,A. Hamed,D. Hardtke,J. W. Harris,M. Heinz,T. W. Henry,S. Heppelmann,T. Herston,B. Hippolyte, A. Hirsch,E. Hjort,G. W. Hoffmann,M. Horsley,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,M. Kaplan,D. Keane,V. Yu. Khodyrev,J. Kiryluk,A. Kisiel,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,A. I. Kulikov, A. Kumar,G. J. Kunde,C. L. Kunz,R. Kh. Kutuev,A. A. Kuznetsov,M. A. C. Lamont,J. M. Landgraf,S. Lange,B. Lasiuk,F. Laue,J. Lauret,A. Lebedev,R. Lednický,M. J. LeVine,C. Li,Q. Li,S. J. Lindenbaum, M. A. Lisa, F. Liu,L. Liu,Z. Liu,Q. J. Liu,T. Ljubicic,W. J. Llope,H. Long,R. S. Longacre,M. Lopez-Noriega,W. A. Love,T. Ludlam, D. Lynn,J. Ma, Y. G. Ma,D. Magestro,S. Mahajan,L. K. Mangotra,D. P. Mahapatra,R. Majka,R. Manweiler,S. Margetis, C. Markert,L. Martin,J. 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,M. J. Mora-Corral,D. A. Morozov,V. Morozov,M. M. de Moura,M. G. Munhoz,B. K. Nandi,S. K. Nayak,T. K. Nayak,J. M. Nelson,P. K. Netrakanti,V. A. Nikitin,L. V. Nogach,B. Norman,S. B. Nurushev,G. Odyniec,A. Ogawa,V. Okorokov,M. Oldenburg,D. Olson,G. Paic,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,M. Planinic,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,R. L. Ray,S. V. Razin,D. Reichhold,J. G. Reid, G. Renault,F. Retiere,A. Ridiger,H. G. Ritter, J. B. Roberts,O. V. Rogachevski,J. L. Romero, A. Rose, C. Roy,L. J. Ruan,R. Sahoo,I. Sakrejda, S. Salur,J. Sandweiss,I. Savin,J. Schambach,R. P. Scharenberg,N. Schmitz,L. S. Schroeder,K. Schweda,J. Seger,P. Seyboth, E. Shahaliev,M. Shao,W. Shao,M. Sharma,K. E. Shestermanov,S. S. Shimanskii,R. N. Singaraju,F. Simon,G. Skoro, N. Smirnov,R. Snellings,G. Sood,P. Sorensen,J. Sowinski,J. Speltz,H. M. Spinka, B. Srivastava,T. D. S. Stanislaus,R. Stock,A. Stolpovsky,M. Strikhanov,B. Stringfellow,C. Struck,A. A. P. Suaide, E. Sugarbaker, C. Suire,M. Šumbera,B. Surrow, T. J. M. Symons,A. Szanto de Toledo,P. Szarwas,A. Tai,J. Takahashi,A. H. Tang,D. Thein,J. H. Thomas,S. Timoshenko,M. Tokarev,M. B. Tonjes,T. A. Trainor, S. Trentalange, R. E. Tribble,O. Tsai,T. Ullrich,D. G. Underwood,G. Van Buren,A. M. VanderMolen,R. Varma,I. Vasilevski,A. N. Vasiliev,R. Vernet,S. E. Vigdor,Y. P. Viyogi,S. A. Voloshin,M. Vznuzdaev,W. Waggoner, F. Wang,G. Wang, X. L. Wang,Y. Wang,Z. M. Wang,H. Ward,J. W. Watson,J. C. Webb,R. Wells,G. D. Westfall,C. Whitten,H. Wieman,R. Willson,S. W. Wissink,R. Witt,J. Wood,J. Wu,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,Z. P. Zhaomin,Z. P. Zizong,P. A. Żołnierczuk,R. Zoulkarneev,J. Zoulkarneeva,A. N. Zubarev

PHYSICAL REVIEW LETTERS（2005）

Cited 498|Views102

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Abstract

Charged hadrons in 0.15 < p(perpendicular to)< 4 GeV/c associated with particles of p(perpendicular to)(trig)> 4 GeV/c are reconstructed in pp and Au+Au collisions at root s(NN)=200 GeV. The associated multiplicity and p(perpendicular to) magnitude sum are found to increase from pp to central Au+Au collisions. The associated p(perpendicular to) distributions, while similar in shape on the nearside, are significantly softened on the awayside in central Au+Au relative to pp and not much harder than that of inclusive hadrons. The results, consistent with jet quenching, suggest that the awayside fragments approach equilibration with the medium traversed.

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Key words

high transverse momentum particles,charged hadrons,display=inline><mmlmi>au</mmlmi><mmlmo>+</mmlmo><mmlmi>au</mmlmi></mmlmath>collisions

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