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Pion-kaon correlations in central Au+Au collisions at root s(NN)=130 GeV

J. Adams,C. Adler,M. Aggarwal,Z. Ahammed,J. Amonett,B. Anderson,M. Anderson,D. Arkhipkin,G. S. Averichev,S. Badyal,J. Balewski,O. Barannikova,L. Barnby,J. Baudot,S. Bekele,V. Belaga,R. Bellwied,J. Berger,B. I. Bezverkhny,S. Bhardwaj,P. Bhaskar,A. Bhati,H. Bichsel,A. Billmeier,L. Bland,C. Blyth,B. Bonner,M. Botje,A. Boucham,A. Brandin,A. Bravar,R. Cadman,X. Cai,H. Caines,M. Calderon De La Barca Sanchez,J. Carroll,J. Castillo,M. Castro,D. Cebra,P. Chaloupka,S. Chattopadhyay,H. Chen,Y. Chen,S. Chernenko,M. Cherney,A. Chikanian,B. Choi,W. Christie,J. Coffin,T. Cormier,J. Cramer,H. Crawford,D. Das,S. Das,A. Derevschikov,L. Didenko,T. Dietel,X. Dong,J. Draper,F. Du,A. Dubey,V. Dunin,J. Dunlop,M. Dutta Majumdar,V. Eckardt,L. Efimov,V. Emelianov,J. Engelage,G. Eppley,B. Erazmus,P. Fachini,V. Faine,J. Faivre,R. Fatemi,K. Filimonov,P. Filip,E. Finch,Y. Fisyak,D. Flierl,K. J. Foley,J. Fu,C. Gagliardi,M. Ganti,T. Gutierrez,N. Gagunashvili,J. Gans,L. Gaudichet,M. Germain,F. Geurts,V. Ghazikhanian,P. Ghosh,J. González,Oleg A Grachov,V. Grigoriev,S. Gronstal,D. Grosnick,M. Guedon,S. Guertin,A. Gupta,E. Gushin,T. Hallman,D. Hardtke,J. Harris,M. Heinz,T. Henry,S. Heppelmann,T. Herston,B. Hippolyte,A. Hirsch,E. Hjort,G. Hoffmann,M. Horsley,H. Huang,S. Huang,T. Humanic,G. Igo,A. Ishihara,P. Jacobs,W. Jacobs,M. Janik,I. Johnson,P. Jones,E. Judd,S. Kabana,M. Kaneta,M. Kaplan,D. Keane,J. Kiryluk,A. Kisiel,J. Klay,S. Klein,A. Klyachko,D. Koetke,T. Kollegger,A. Konstantinov,M. Kopytine,L. Kotchenda,A. Kovalenko,M. Kramer,P. Kravtsov,K. Krueger,C. Kuhn,A. Kulikov,A. Kumar,G. Kunde,C. Kunz,R. Kutuev,A. Kuznetsov,M. Lamont,J. Landgraf,S. Lange,C. Lansdell,B. Lasiuk,F. Laue,J. Lauret,A. Lebedev,R. Lednický,V. Leontiev,M. Levine,C. Li,Q. Li,S. Lindenbaum,M. Lisa,F. Liu,L. Liu,Z. Liu,Q. Liu,T. Ljubičić,W. Llope,H. Long,R. Longacre,M. López-Noriega,W. Love,T. Ludlam,D. Lynn,J. Ma,Y. Ma,D. Magestro,S. Mahajan,L. Mangotra,D. P. Mahapatra,R. Majka,R. Manweiler,S. Margetis,C. Markert,L. Martin,J. Marx,H. Matis,Y. Matulenko,T. McShane,F. Meissner,Y. Melnick,A. Meschanin,M. Messer,M. Miller,Z. Milosevich,N. Minaev,C. Mironov,D. Mishra,J. Mitchell,B. Mohanty,L. Molnár,C. F. Moore,M. J. Mora-Corral,V. Morozov,M. M. de Moura,M. Munhoz,B. Nandi,S. Nayak,T. Nayak,J. Nelson,P. Nevski,V. Nikitin,L. Nogach,B. Norman,S. Nurushev,G. Odyniec,A. Ogawa,V. Okorokov,M. Oldenburg,D. Olson,G. Paic,S. Pandey,S. Pal,Y. Panebratsev,S. Panitkin,A. Pavlinov,T. Pawlak,V. Perevoztchikov,W. Peryt,V. Petrov,S. Phatak,R. Picha,M. Planinić,J. Pluta,N. Porile,J. Porter,A. Poskanzer,M. Potekhin,E. Potrebenikova,B. Potukuchi,D. Prindle,C. Pruneau,J. Putschke,G. Rai,G. Rakness,R. Raniwala,S. Raniwala,O. Ravel,R. Ray,S. Razin,D. Reichhold,J. Reid,G. Renault,F. Retière,A. Ridiger,H. Ritter,J. Roberts,O. Rogachevski,J. Romero,A. Rose,C. Roy,L. Ruan,V. Rykov,R. Sahoo,I. Sakrejda,S. Salur,J. Sandweiss,I. Savin,J. Schambach,R. Scharenberg,N. Schmitz,L. Schroeder,K. Schweda,J. Seger,D. Seliverstov,P. Seyboth,E. Shahaliev,M. Shao,M. Sharma,K. Shestermanov,S. Shimanskii,R. Singaraju,F. Simon,G. Škoro,N. Smirnov,R. Snellings,G. Sood,P. Sorensen,J. Sowinski,H. Spinka,B. Srivastava,S. Stanislaus,R. Stock,A. Stolpovsky,M. Strikhanov,B. Stringfellow,C. Struck,A. Suaide,E. Sugarbaker,C. Suire,M. Šumbera,B. Surrow,T. Symons,A. Szanto de Toledo,P. Szarwas,A. Tai,J. Takahashi,A. Tang,D. Thein,J. Thomas,V. Tikhomirov,M. Tokarev,M. Tonjes,T. Trainor,S. Trentalange,R. Tribble,M. Trivedi,V. Trofimov,O. Tsai,T. Ullrich,D. Underwood,G. Van Buren,A. Vandermolen,A. Vasiliev,M. Vasiliev,S. Vigdor,Y. Viyogi,S. Voloshin,W. Waggoner,F. Wang,G. Wang,X. Wang,Z. Wang,H. Ward,J. Watson,R. Wells,G. Westfall,C. Whitten,H. Wieman,R. Willson,S. Wissink,R. Witt,J. Wood,J. Wu,N. Xu,Z. Xu,Z. Xu,A. Yakutin,E. Yamamoto,J. Yang,P. Yepes,V. Yurevich,Y. Zanevski,I. Zborovský,H. Zhang,H. Zhang,W. Zhang,Z. Zhang,P. Zolnierczuk,R. Zoulkarneev,J. Zoulkarneeva,A. Zubarev

Published 2003 in Physical Review Letters

ABSTRACT

Pion-kaon correlation functions are constructed from central Au+Au STAR data taken at roots(NN)=130 GeV by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The results suggest that pions and kaons are not emitted at the same average space-time point. Space-momentum correlations, i.e., transverse flow, lead to a space-time emission asymmetry of pions and kaons that is consistent with the data. This result provides new independent evidence that the system created at RHIC undergoes a collective transverse expansion.

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