Direct observation of dijets in central Au+Au collisions at sqrt[sNN]=200 GeV.
J Adams,M M Aggarwal,Z Ahammed,J Amonett,B D Anderson,M Anderson,D Arkhipkin,G S Averichev,Y Bai,J Balewski,O Barannikova,L S Barnby,J Baudot,S Bekele,V V Belaga,A Bellingeri-Laurikainen,R Bellwied,B I Bezverkhny,S Bhardwaj,A Bhasin,A K Bhati,H Bichsel,J Bielcik,J Bielcikova,L C Bland,C O Blyth,S-L Blyth,B E Bonner,M Botje,J Bouchet,A V Brandin,A Bravar,M Bystersky,R V Cadman,X Z Cai,H Caines,M Calderón de la Barca Sánchez,J Castillo,O Catu,D Cebra,Z Chajecki,P Chaloupka,S Chattopadhyay,H F Chen,J H Chen,Y Chen,J Cheng,M Cherney,A Chikanian,H A Choi,W Christie,J P Coffin,T M Cormier,M R Cosentino,J G Cramer,H J Crawford,D Das,S Das,M Daugherity,M M de Moura,T G Dedovich,M Dephillips,A A Derevschikov,L Didenko,T Dietel,P Djawotho,S M Dogra,W J Dong,X Dong,J E Draper,F Du,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,M Estienne,P Fachini,R Fatemi,J Fedorisin,K Filimonov,P Filip,E Finch,V Fine,Y Fisyak,J Fu,C A Gagliardi,L Gaillard,J Gans,M S Ganti,V Ghazikhanian,P Ghosh,J E Gonzalez,Y G Gorbunov,H Gos,O Grebenyuk,D Grosnick,S M Guertin,K S F F Guimaraes,Y Guo,N Gupta,T D Gutierrez,B Haag,T J Hallman,A Hamed,J W Harris,W He,M Heinz,T W Henry,S Hepplemann,B Hippolyte,A Hirsch,E Hjort,G W Hoffmann,M J Horner,H Z Huang,S L Huang,E W Hughes,T J Humanic,G Igo,P Jacobs,W W Jacobs,P Jakl,F Jia,H Jiang,P G Jones,E G Judd,S Kabana,K Kang,J Kapitan,M Kaplan,D Keane,A Kechechyan,V Yu Khodyrev,B C Kim,J Kiryluk,A Kisiel,E M Kislov,S R Klein,D D Koetke,T Kollegger,M Kopytine,L Kotchenda,V Kouchpil,K L Kowalik,M Kramer,P Kravtsov,V I Kravtsov,K Krueger,C Kuhn,A I Kulikov,A Kumar,A A Kuznetsov,M A C Lamont,J M Landgraf,S Lange,S Lapointe,F Laue,J Lauret,A Lebedev,R Lednicky,C-H Lee,S Lehocka,M J Levine,C Li,Q Li,Y Li,G Lin,S J Lindenbaum,M A Lisa,F Liu,H Liu,J Liu,L 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,D P Mahapatra,R Majka,L K Mangotra,R Manweiler,S Margetis,C Markert,L Martin,H S Matis,Yu A Matulenko,C J McClain,T S McShane,Yu Melnick,A Meschanin,M L Miller,N G Minaev,S Mioduszewski,C Mironov,A Mischke,D K Mishra,J Mitchell,B Mohanty,L Molnar,C F Moore,D A Morozov,M G Munhoz,B K Nandi,C Nattrass,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,M Pachr,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 Poljak,N Porile,J Porter,A M Poskanzer,M Potekhin,E Potrebenikova,B V K S Potukuchi,D Prindle,C Pruneau,J Putschke,G Rakness,R Raniwala,S Raniwala,R L Ray,S V Razin,J Reinnarth,D Relyea,F Retiere,A Ridiger,H G Ritter,J B Roberts,O V Rogachevskiy,J L Romero,A Rose,C Roy,L Ruan,M J Russcher,R Sahoo,I Sakrejda,S Salur,J Sandweiss,M Sarsour,P S Sazhin,J Schambach,R P Scharenberg,N Schmitz,K Schweda,J Seger,I Selyuzhenkov,P Seyboth,A Shabetai,E Shahaliev,M Shao,M Sharma,W Q Shen,S S Shimanskiy,E Sichtermann,F Simon,R N Singaraju,N Smirnov,R Snellings,G Sood,P Sorensen,J Sowinski,J Speltz,H M Spinka,B Srivastava,A Stadnik,T D S Stanislaus,R Stock,A Stolpovsky,M Strikhanov,B Stringfellow,A A P Suaide,E Sugarbaker,M Sumbera,Z Sun,B Surrow,M Swanger,T J M Symons,A Szanto de Toledo,A Tai,J Takahashi,A H Tang,T Tarnowsky,D Thein,J H Thomas,A R Timmins,S Timoshenko,M Tokarev,S Trentalange,R E Tribble,O D Tsai,J Ulery,T Ullrich,D G Underwood,G Van Buren,N van der Kolk,M van Leeuwen,A M Vander Molen,R Varma,I M Vasilevski,A N Vasiliev,R Vernet,S E Vigdor,Y P Viyogi,S Vokal,S A Voloshin,W T Waggoner,F Wang,G Wang,J S Wang,X L Wang,Y Wang,J W Watson,J C Webb,G D Westfall,A Wetzler,C Whitten,H Wieman,S W Wissink,R Witt,J Wood,J Wu,N Xu,Q H Xu,Z Xu,P Yepes,I-K Yoo,V I Yurevich,W Zhan,H Zhang,W M Zhang,Y Zhang,Z P Zhang,Y Zhao,C Zhong,R Zoulkarneev,Y Zoulkarneeva,A N Zubarev,J X Zuo
Physical review letters（2006）
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摘要
The STAR Collaboration at the Relativistic Heavy Ion Collider reports measurements of azimuthal correlations of high transverse momentum (pT) charged hadrons in Au+Au collisions at higher pT than reported previously. As (pT) is increased, a narrow, back-to-back peak emerges above the decreasing background, providing a clear dijet signal for all collision centralities studied. Using these correlations, we perform a systematic study of dijet production and suppression in nuclear collisions, providing new constraints on the mechanisms underlying partonic energy loss in dense matter.
