Transverse-momentum pt correlations on (η, ) from mean-pt fluctuations in Au–Au collisions at  GeV

doi:10.1088/0954-3899/32/6/L02

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Journal of Physics G: Nuclear and Particle Physics

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Journal of Physics G: Nuclear and Particle Physics Volume 32 Number 6 Create an alert RSS this journal

STAR Collaboration et al 2006 J. Phys. G: Nucl. Part. Phys. 32 L37 doi:10.1088/0954-3899/32/6/L02

Transverse-momentum p_t correlations on (η, ) from mean-p_t fluctuations in Au–Au collisions at $\sqrt{s_{\rm NN}} = 200$ GeV

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STAR Collaboration, J Adams¹, M M Aggarwal², Z Ahammed³, J Amonett⁴, B D Anderson⁴, D Arkhipkin⁵, G S Averichev⁶, S K Badyal⁷, Y Bai⁸, J Balewski⁹, O Barannikova¹⁰, L S Barnby¹, J Baudot¹¹, S Bekele¹², V V Belaga⁶, A Bellingeri-Laurikainen¹³, R Bellwied¹⁴, J Berger¹⁵, B I Bezverkhny¹⁶, S Bharadwaj¹⁷, A Bhasin⁷, A K Bhati², V S Bhatia², H Bichsel¹⁸, J Bielcik¹⁶, J Bielcikova¹⁶, A Billmeier¹⁴, L C Bland¹⁹, C O Blyth¹, S-L Blyth²⁰, B E Bonner²¹, M Botje⁸, A Boucham¹³, J Bouchet¹³, A V Brandin²², A Bravar¹⁹, M Bystersky²³, R V Cadman²⁴, X Z Cai²⁵, H Caines¹⁶, M Calderón de la Barca Sánchez⁹, J Castillo²⁰, O Catu¹⁶, D Cebra²⁶, Z Chajecki¹², P Chaloupka²³, S Chattopadhyay³, H F Chen²⁷, J H Chen²⁵, Y Chen²⁸, J Cheng²⁹, M Cherney³⁰, A Chikanian¹⁶, H A Choi³¹, W Christie¹⁹, J P Coffin¹¹, T M Cormier¹⁴, M R Cosentino³², J G Cramer¹⁸, H J Crawford³³, D Das³, S Das³, M Daugherity³⁴, M M de Moura³², T G Dedovich⁶, M DePhillips¹⁹, A A Derevschikov³⁵, L Didenko¹⁹, T Dietel¹⁵, S M Dogra⁷, W J Dong²⁸, X Dong²⁷, J E Draper²⁶, F Du¹⁶, A K Dubey³⁶, V B Dunin⁶, J C Dunlop¹⁹, M R Dutta Mazumdar³, V Eckardt³⁷, W R Edwards²⁰, L G Efimov⁶, V Emelianov²², J Engelage³³, G Eppley²¹, B Erazmus¹³, M Estienne¹³, P Fachini¹⁹, J Faivre¹¹, R Fatemi³⁸, J Fedorisin⁶, K Filimonov²⁰, P Filip²³, E Finch¹⁶, V Fine¹⁹, Y Fisyak¹⁹, K S F Fornazier³², J Fu²⁹, C A Gagliardi³⁹, L Gaillard¹, J Gans¹⁶, M S Ganti³, F Geurts²¹, V Ghazikhanian²⁸, P Ghosh³, J E Gonzalez²⁸, H Gos⁴⁰, O Grachov¹⁴, O Grebenyuk⁸, D Grosnick⁴¹, S M Guertin²⁸, Y Guo¹⁴, A Gupta⁷, N Gupta⁷, T D Gutierrez²⁶, T J Hallman¹⁹, A Hamed¹⁴, D Hardtke²⁰, J W Harris¹⁶, M Heinz⁴², T W Henry³⁹, S Hepplemann⁴³, B Hippolyte¹¹, A Hirsch¹⁰, E Hjort²⁰, G W Hoffmann³⁴, M J Horner²⁰, H Z Huang²⁸, S L Huang²⁷, E W Hughes⁴⁴, T J Humanic¹², G Igo²⁸, A Ishihara³⁴, P Jacobs²⁰, W W Jacobs⁹, M Jedynak⁴⁰, H Jiang²⁸, P G Jones¹, E G Judd³³, S Kabana⁴², K Kang²⁹, M Kaplan⁴⁵, D Keane⁴, A Kechechyan⁶, V Yu Khodyrev³⁵, B C Kim³¹, J Kiryluk³⁸, A Kisiel⁴⁰, E M Kislov⁶, J Klay²⁰, S R Klein²⁰, D D Koetke⁴¹, T Kollegger¹⁵, M Kopytine⁴, L Kotchenda²², K L Kowalik²⁰, M Kramer⁴⁶, P Kravtsov²², V I Kravtsov³⁵, K Krueger²⁴, C Kuhn¹¹, A I Kulikov⁶, A Kumar², R Kh Kutuev⁵, A A Kuznetsov⁶, M A C Lamont¹⁶, J M Landgraf¹⁹, S Lange¹⁵, F Laue¹⁹, J Lauret¹⁹, A Lebedev¹⁹, R Lednicky⁶, C-H Lee³¹, S Lehocka⁶, M J LeVine¹⁹, C Li²⁷, Q Li¹⁴, Y Li²⁹, G Lin¹⁶, S J Lindenbaum⁴⁶, M A Lisa¹², F Liu⁴⁷, H Liu²⁷, J Liu²¹, L Liu⁴⁷, Q J Liu¹⁸, Z Liu⁴⁷, T Ljubicic¹⁹, W J Llope²¹, H Long²⁸, R S Longacre¹⁹, M Lopez-Noriega¹², W A Love¹⁹, Y Lu⁴⁷, T Ludlam¹⁹, D Lynn¹⁹, G L Ma²⁵, J G Ma²⁸, Y G Ma²⁵, D Magestro¹², S Mahajan⁷, D P Mahapatra³⁶, R Majka¹⁶, L K Mangotra⁷, R Manweiler⁴¹, S Margetis⁴, C Markert⁴, L Martin¹³, J N Marx²⁰, H S Matis²⁰, Yu A Matulenko³⁵, C J McClain²⁴, T S McShane³⁰, F Meissner²⁰, Yu Melnick³⁵, A Meschanin³⁵, M L Miller³⁸, N G Minaev³⁵, C Mironov⁴, A Mischke⁸, D K Mishra³⁶, J Mitchell²¹, B Mohanty³, L Molnar¹⁰, C F Moore³⁴, D A Morozov³⁵, M G Munhoz³², B K Nandi³, S K Nayak⁷, T K Nayak³, J M Nelson¹, P K Netrakanti³, V A Nikitin⁵, L V Nogach³⁵, S B Nurushev³⁵, G Odyniec²⁰, A Ogawa¹⁹, V Okorokov²², M Oldenburg²⁰, D Olson²⁰, S K Pal³, Y Panebratsev⁶, S Y Panitkin¹⁹, A I Pavlinov¹⁴, T Pawlak⁴⁰, T Peitzmann⁸, V Perevoztchikov¹⁹, C Perkins³³, W Peryt⁴⁰, V A Petrov¹⁴, S C Phatak³⁶, R Picha²⁶, M Planinic⁴⁸, J Pluta⁴⁰, N Porile¹⁰, J Porter¹⁸, A M Poskanzer²⁰, M Potekhin¹⁹, E Potrebenikova⁶, B V K S Potukuchi⁷, D Prindle¹⁸, C Pruneau¹⁴, J Putschke²⁰, G Rakness⁴³, R Raniwala¹⁷, S Raniwala¹⁷, O Ravel¹³, R L Ray³⁴, S V Razin⁶, D Reichhold¹⁰, J G Reid¹⁸, J Reinnarth¹³, G Renault¹³, F Retiere²⁰, A Ridiger²², H G Ritter²⁰, J B Roberts²¹, O V Rogachevskiy⁶, J L Romero²⁶, A Rose²⁰, C Roy¹³, L Ruan²⁷, M J Russcher⁸, R Sahoo³⁶, I Sakrejda²⁰, S Salur¹⁶, J Sandweiss¹⁶, M Sarsour³⁹, I Savin⁵, P S Sazhin⁶, J Schambach³⁴, R P Scharenberg¹⁰, N Schmitz³⁷, K Schweda²⁰, J Seger³⁰, I Selyuzhenkov¹⁴, P Seyboth³⁷, E Shahaliev⁶, M Shao²⁷, W Shao⁴⁴, M Sharma², W Q Shen²⁵, K E Shestermanov³⁵, S S Shimanskiy⁶, E Sichtermann²⁰, F Simon³⁸, R N Singaraju³, N Smirnov¹⁶, R Snellings⁸, G Sood⁴¹, P Sorensen²⁰, J Sowinski⁹, J Speltz¹¹, H M Spinka²⁴, B Srivastava¹⁰, A Stadnik⁶, T D S Stanislaus⁴¹, R Stock¹⁵, A Stolpovsky¹⁴, M Strikhanov²², B Stringfellow¹⁰, A A P Suaide³², E Sugarbaker¹², M Sumbera²³, B Surrow³⁸, M Swanger³⁰, T J M Symons²⁰, A Szanto de Toledo³², A Tai²⁸, J Takahashi³², A H Tang⁸, T Tarnowsky¹⁰, D Thein²⁸, J H Thomas²⁰, A R Timmins¹, S Timoshenko²², M Tokarev⁶, T A Trainor¹⁸, S Trentalange²⁸, R E Tribble³⁹, O D Tsai²⁸, J Ulery¹⁰, T Ullrich¹⁹, D G Underwood²⁴, G Van Buren¹⁹, N van der Kolk⁸, M van Leeuwen²⁰, A M Vander Molen⁴⁹, R Varma⁵⁰, I M Vasilevski⁵, A N Vasiliev³⁵, R Vernet¹¹, S E Vigdor⁹, Y P Viyogi³, S Vokal⁶, S A Voloshin¹⁴, W T Waggoner³⁰, F Wang¹⁰, G Wang⁴, G Wang⁴⁴, X L Wang²⁷, Y Wang³⁴, Y Wang²⁹, Z M Wang²⁷, H Ward³⁴, J W Watson⁴, J C Webb⁹, G D Westfall⁴⁹, A Wetzler²⁰, C Whitten Jr²⁸, H Wieman²⁰, S W Wissink⁹, R Witt⁴², J Wood²⁸, J Wu²⁷, N Xu²⁰, Z Xu¹⁹, Z Z Xu²⁷, E Yamamoto²⁰, P Yepes²¹, I-K Yoo³¹, V I Yurevich⁶, I Zborovsky²³, H Zhang¹⁹, W M Zhang⁴, Y Zhang²⁷, Z P Zhang²⁷, C Zhong²⁵, R Zoulkarneev⁵, Y Zoulkarneeva⁵, A N Zubarev⁶ and J X Zuo²⁵

Show affiliations

¹ University of Birmingham, Birmingham, UK
² Panjab University, Chandigarh 160 014, India
³ Variable Energy Cyclotron Centre, Kolkata 700 064, India
⁴ Kent State University, Kent, OH 44242, USA
⁵ Particle Physics Laboratory (JINR), Dubna, Russia
⁶ Laboratory for High Energy (JINR), Dubna, Russia
⁷ University of Jammu, Jammu 180 001, India
⁸ NIKHEF and Utrecht University, Amsterdam, The Netherlands
⁹ Indiana University, Bloomington, IN 47408, USA
¹⁰ Purdue University, West Lafayette, IN 47907, USA
¹¹ Institut de Recherches Subatomiques, Strasbourg, France
¹² Ohio State University, Columbus, OH 43210, USA
¹³ SUBATECH, Nantes, France
¹⁴ Wayne State University, Detroit, MI 48201, USA
¹⁵ University of Frankfurt, Frankfurt, Germany
¹⁶ Yale University, New Haven, CT 06520, USA
¹⁷ University of Rajasthan, Jaipur 302004, India
¹⁸ University of Washington, Seattle, WA 98195, USA
¹⁹ Brookhaven National Laboratory, Upton, NY 11973, USA
²⁰ Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
²¹ Rice University, Houston, TX 77251, USA
²² Moscow Engineering Physics Institute, Moscow, Russia
²³ Nuclear Physics Institute AS CR, 250 68 Rez/Prague, Czech Republic
²⁴ Argonne National Laboratory, Argonne, IL 60439, USA
²⁵ Shanghai Institute of Applied Physics, Shanghai 201800, People's Republic of China
²⁶ University of California, Davis, CA 95616, USA
²⁷ University of Science and Technology of China, Anhui 230027, People's Republic of China
²⁸ University of California, Los Angeles, CA 90095, USA
²⁹ Tsinghua University, Beijing 100084, People's Republic of China
³⁰ Creighton University, Omaha, NE 68178, USA
³¹ Pusan National University, Pusan, South Korea
³² Universidade de Sao Paulo, Sao Paulo, Brazil
³³ University of California, Berkeley, CA 94720, USA
³⁴ University of Texas, Austin, TX 78712, USA
³⁵ Institute of High Energy Physics, Protvino, Russia
³⁶ Institute of Physics, Bhubaneswar 751 005, India
³⁷ Max-Planck-Institut für Physik, Munich, Germany
³⁸ Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA
³⁹ Texas A&M University, College Station, TX 77843, USA
⁴⁰ Warsaw University of Technology, Warsaw, Poland
⁴¹ Valparaiso University, Valparaiso, IN 46383, USA
⁴² University of Bern, 3012 Bern, Switzerland
⁴³ Pennsylvania State University, University Park, PA 16802, USA
⁴⁴ California Institute of Technology, Pasadena, CA 91125, USA
⁴⁵ Carnegie Mellon University, Pittsburgh, PA 15213, USA
⁴⁶ City College of New York, New York, NY 10031, USA
⁴⁷ Institute of Particle Physics, CCNU (HZNU), Wuhan 430079, People's Republic of China
⁴⁸ University of Zagreb, Zagreb HR-10002, Croatia
⁴⁹ Michigan State University, East Lansing, MI 48824, USA
⁵⁰ Indian Institute of Technology, Mumbai, India

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Abstract References Cited By

LETTER TO THE EDITOR

We present first measurements of the pseudorapidity and azimuth (η, phi ) bin-size dependence of event-wise mean transverse-momentum lang p_t rang fluctuations for Au–Au collisions at $\sqrt{s_{\rm NN}} = 200$ GeV. We invert that dependence to obtain p_t autocorrelations on differences (η_Δ, phi _Δ) interpreted to represent velocity/temperature distributions on (η, phi ). The general form of the autocorrelations suggests that the basic correlation mechanism is parton fragmentation. The autocorrelations vary rapidly with collision centrality, which suggests that fragmentation is strongly modified by a dissipative medium in the more central Au–Au collisions relative to peripheral or p–p collisions.

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Journal of Physics G: Nuclear and Particle Physics

Transverse-momentum p_t correlations on (η, ) from mean-p_t fluctuations in Au–Au collisions at $\sqrt{s_{\rm NN}} = 200$ GeV

LETTER TO THE EDITOR

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