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Phys. Rev. C 80, 024905 (2009) [12 pages]

Pion interferometry in Au+Au and Cu+Cu collisions at sqrt(s[sub NN])=62.4 and 200 GeV

B. I. Abelev,8 M. M. Aggarwal,30 Z. Ahammed,47 B. D. Anderson,18 D. Arkhipkin,12 G. S. Averichev,11 J. Balewski,22 O. Barannikova,8 L. S. Barnby,2 J. Baudot,16 S. Baumgart,52 D. R. Beavis,3 R. Bellwied,50 F. Benedosso,27 M. J. Betancourt,22 R. R. Betts,8 A. Bhasin,17 A. K. Bhati,30 H. Bichsel,49 J. Bielcik,10 J. Bielcikova,10 B. Biritz,6 L. C. Bland,3 M. Bombara,2 B. E. Bonner,36 M. Botje,27 J. Bouchet,18 E. Braidot,27 A. V. Brandin,25 E. Bruna,52 S. Bueltmann,29 T. P. Burton,2 M. Bystersky,10 X. Z. Cai,40 H. Caines,52 M. Calderón de la Barca Sánchez,5 O. Catu,52 D. Cebra,5 R. Cendejas,6 M. C. Cervantes,42 Z. Chajecki,28 P. Chaloupka,10 S. Chattopadhyay,47 H. F. Chen,38 J. H. Chen,18 J. Y. Chen,51 J. Cheng,44 M. Cherney,9 A. Chikanian,52 K. E. Choi,34 W. Christie,3 R. F. Clarke,42 M. J. M. Codrington,42 R. Corliss,22 T. M. Cormier,50 M. R. Cosentino,37 J. G. Cramer,49 H. J. Crawford,4 D. Das,5 S. Dash,13 M. Daugherity,43 L. C. De Silva,50 T. G. Dedovich,11 M. DePhillips,3 A. A. Derevschikov,32 R. Derradi de Souza,7 L. Didenko,3 P. Djawotho,42 S. M. Dogra,17 X. Dong,21 J. L. Drachenberg,42 J. E. Draper,5 F. Du,52 J. C. Dunlop,3 M. R. Dutta Mazumdar,47 W. R. Edwards,21 L. G. Efimov,11 E. Elhalhuli,2 M. Elnimr,50 V. Emelianov,25 J. Engelage,4 G. Eppley,36 B. Erazmus,41 M. Estienne,16 L. Eun,31 P. Fachini,3 R. Fatemi,19 J. Fedorisin,11 A. Feng,51 P. Filip,12 E. Finch,52 V. Fine,3 Y. Fisyak,3 C. A. Gagliardi,42 L. Gaillard,2 M. S. Ganti,47 D. R. Gangadharan,6 E. J. Garcia-Solis,8 A. Geromitsos,41 F. Geurts,36 V. Ghazikhanian,6 P. Ghosh,47 Y. N. Gorbunov,9 A. Gordon,3 O. Grebenyuk,21 D. Grosnick,46 B. Grube,34 S. M. Guertin,6 K. S. F. F. Guimaraes,37 A. Gupta,17 N. Gupta,17 W. Guryn,3 B. Haag,5 T. J. Hallman,3 A. Hamed,42 J. W. Harris,52 W. He,15 M. Heinz,52 S. Heppelmann,31 B. Hippolyte,16 A. Hirsch,33 E. Hjort,21 A. M. Hoffman,22 G. W. Hoffmann,43 D. J. Hofman,8 R. S. Hollis,8 H. Z. Huang,6 T. J. Humanic,28 G. Igo,6 A. Iordanova,8 P. Jacobs,21 W. W. Jacobs,15 P. Jakl,10 C. Jena,13 F. Jin,40 C. L. Jones,22 P. G. Jones,2 J. Joseph,18 E. G. Judd,4 S. Kabana,41 K. Kajimoto,43 K. Kang,44 J. Kapitan,10 D. Keane,18 A. Kechechyan,11 D. Kettler,49 V. Yu. Khodyrev,32 D. P. Kikola,21 J. Kiryluk,21 A. Kisiel,28 S. R. Klein,21 A. G. Knospe,52 A. Kocoloski,22 D. D. Koetke,46 M. Kopytine,18 W. Korsch,19 L. Kotchenda,25 V. Kouchpil,10 P. Kravtsov,25 V. I. Kravtsov,32 K. Krueger,1 M. Krus,10 C. Kuhn,16 L. Kumar,30 P. Kurnadi,6 M. A. C. Lamont,3 J. M. Landgraf,3 S. LaPointe,50 J. Lauret,3 A. Lebedev,3 R. Lednicky,12 C. -H. Lee,34 J. H. Lee,3 W. Leight,22 M. J. LeVine,3 N. Li,51 C. Li,38 Y. Li,44 G. Lin,52 S. J. Lindenbaum,26 M. A. Lisa,28 F. Liu,51 J. Liu,36 L. Liu,51 T. Ljubicic,3 W. J. Llope,36 R. S. Longacre,3 W. A. Love,3 Y. Lu,38 T. Ludlam,3 G. L. Ma,40 Y. G. Ma,40 D. P. Mahapatra,13 R. Majka,52 O. I. Mall,5 L. K. Mangotra,17 R. Manweiler,46 S. Margetis,18 C. Markert,43 H. S. Matis,21 Yu. A. Matulenko,32 T. S. McShane,9 A. Meschanin,32 R. Milner,22 N. G. Minaev,32 S. Mioduszewski,42 A. Mischke,27 J. Mitchell,36 B. Mohanty,47 D. A. Morozov,32 M. G. Munhoz,37 B. K. Nandi,14 C. Nattrass,52 T. K. Nayak,47 J. M. Nelson,2 P. K. Netrakanti,33 M. J. Ng,4 L. V. Nogach,32 S. B. Nurushev,32 G. Odyniec,21 A. Ogawa,3 H. Okada,3 V. Okorokov,25 D. Olson,21 M. Pachr,10 B. S. Page,15 S. K. Pal,47 Y. Pandit,18 Y. Panebratsev,11 S. Y. Panitkin,3 T. Pawlak,48 T. Peitzmann,27 V. Perevoztchikov,3 C. Perkins,4 W. Peryt,48 S. C. Phatak,13 M. Planinic,53 J. Pluta,48 N. Poljak,53 A. M. Poskanzer,21 B. V. K. S. Potukuchi,17 D. Prindle,49 C. Pruneau,50 N. K. Pruthi,30 J. Putschke,52 R. Raniwala,35 S. Raniwala,35 R. L. Ray,43 R. Redwine,22 R. Reed,5 A. Ridiger,25 H. G. Ritter,21 J. B. Roberts,36 O. V. Rogachevskiy,11 J. L. Romero,5 A. Rose,21 C. Roy,41 L. Ruan,3 M. J. Russcher,27 R. Sahoo,41 I. Sakrejda,21 T. Sakuma,22 S. Salur,21 J. Sandweiss,52 M. Sarsour,42 J. Schambach,43 R. P. Scharenberg,33 N. Schmitz,23 J. Seger,9 I. Selyuzhenkov,15 P. Seyboth,23 A. Shabetai,16 E. Shahaliev,11 M. Shao,38 M. Sharma,50 S. S. Shi,51 X.-H. Shi,40 E. P. Sichtermann,21 F. Simon,23 R. N. Singaraju,47 M. J. Skoby,33 N. Smirnov,52 R. Snellings,27 P. Sorensen,3 J. Sowinski,15 H. M. Spinka,1 B. Srivastava,33 A. Stadnik,11 T. D. S. Stanislaus,46 D. Staszak,6 M. Strikhanov,25 B. Stringfellow,33 A. A. P. Suaide,37 M. C. Suarez,8 N. L. Subba,18 M. Sumbera,10 X. M. Sun,21 Y. Sun,38 Z. Sun,20 B. Surrow,22 T. J. M. Symons,21 A. Szanto de Toledo,37 J. Takahashi,7 A. H. Tang,3 Z. Tang,38 T. Tarnowsky,33 D. Thein,43 J. H. Thomas,21 J. Tian,40 A. R. Timmins,2 S. Timoshenko,25 D. Tlusty,10 M. Tokarev,11 T. A. Trainor,49 V. N. Tram,21 A. L. Trattner,4 S. Trentalange,6 R. E. Tribble,42 O. D. Tsai,6 J. Ulery,33 T. Ullrich,3 D. G. Underwood,1 G. Van Buren,3 M. van Leeuwen,27 A. M. Vander Molen,24 J. A. Vanfossen, Jr.,18 R. Varma,14 G. M. S. Vasconcelos,7 I. M. Vasilevski,12 A. N. Vasiliev,32 F. Videbaek,3 S. E. Vigdor,15 Y. P. Viyogi,13 S. Vokal,11 S. A. Voloshin,50 M. Wada,43 W. T. Waggoner,9 M. Walker,22 F. Wang,33 G. Wang,6 J. S. Wang,20 Q. Wang,33 X. Wang,44 X. L. Wang,38 Y. Wang,44 G. Webb,19 J. C. Webb,46 G. D. Westfall,24 C. Whitten, Jr.,6 H. Wieman,21 S. W. Wissink,15 R. Witt,45 Y. Wu,51 W. Xie,33 N. Xu,21 Q. H. Xu,39 Y. Xu,38 Z. Xu,3 Y. Yang,20 P. Yepes,36 I. -K. Yoo,34 Q. Yue,44 M. Zawisza,48 H. Zbroszczyk,48 W. Zhan,20 S. Zhang,40 W. M. Zhang,18 X. P. Zhang,21 Y. Zhang,21 Z. P. Zhang,38 Y. Zhao,38 C. Zhong,40 J. Zhou,36 R. Zoulkarneev,12 Y. Zoulkarneeva,12 and J. X. Zuo40

(STAR Collaboration)

1Argonne National Laboratory, Argonne, Illinois 60439, USA
2University of Birmingham, Birmingham, United Kingdom
3Brookhaven National Laboratory, Upton, New York 11973, USA
4University of California, Berkeley, California 94720, USA
5University of California, Davis, California 95616, USA
6University of California, Los Angeles, California 90095, USA
7Universidade Estadual de Campinas, Sao Paulo, Brazil
8University of Illinois at Chicago, Chicago, Illinois 60607, USA
9Creighton University, Omaha, Nebraska 68178, USA
10Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic
11Laboratory for High Energy (JINR), Dubna, Russia
12Particle Physics Laboratory (JINR), Dubna, Russia
13Institute of Physics, Bhubaneswar 751005, India
14Indian Institute of Technology, Mumbai, India
15Indiana University, Bloomington, Indiana 47408, USA
16Institut de Recherches Subatomiques, Strasbourg, France
17University of Jammu, Jammu 180001, India
18Kent State University, Kent, Ohio 44242, USA
19University of Kentucky, Lexington, Kentucky 40506-0055, USA
20Institute of Modern Physics, Lanzhou, People's Republic of China
21Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
22Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
23Max-Planck-Institut für Physik, Munich, Germany
24Michigan State University, East Lansing, Michigan 48824, USA
25Moscow Engineering Physics Institute, Moscow, Russia
26City College of New York, New York City, New York 10031, USA
27NIKHEF and Utrecht University, Amsterdam, The Netherlands
28Ohio State University, Columbus, Ohio 43210, USA
29Old Dominion University, Norfolk, Virginia 23529, USA
30Panjab University, Chandigarh 160014, India
31Pennsylvania State University, University Park, Pennsylvania 16802, USA
32Institute of High Energy Physics, Protvino, Russia
33Purdue University, West Lafayette, Indiana 47907, USA
34Pusan National University, Pusan, Republic of Korea
35University of Rajasthan, Jaipur 302004, India
36Rice University, Houston, Texas 77251, USA
37Universidade de Sao Paulo, Sao Paulo, Brazil
38University of Science & Technology of China, Hefei 230026, People's Republic of China
39Shandong University, Jinan, Shandong 250100, People's Republic of China
40Shanghai Institute of Applied Physics, Shanghai 201800, People's Republic of China
41SUBATECH, Nantes, France
42Texas A&M University, College Station, Texas 77843, USA
43University of Texas, Austin, Texas 78712, USA
44Tsinghua University, Beijing 100084, People's Republic of China
45United States Naval Academy, Annapolis, Maryland 21402, USA
46Valparaiso University, Valparaiso, Indiana 46383, USA
47Variable Energy Cyclotron Centre, Kolkata 700064, India
48Warsaw University of Technology, Warsaw, Poland
49University of Washington, Seattle, Washington 98195, USA
50Wayne State University, Detroit, Michigan 48201, USA
51Institute of Particle Physics, CCNU (HZNU), Wuhan 430079, People's Republic of China
52Yale University, New Haven, Connecticut 06520, USA
53University of Zagreb, Zagreb, HR-10002, Croatia

Received 6 March 2009; published 24 August 2009

We present a systematic analysis of two-pion interferometry in Au+Au collisions at sqrt(s[sub NN])=62.4 GeV and Cu+Cu collisions at sqrt(s[sub NN])=62.4 and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The multiplicity and transverse momentum dependences of the extracted correlation lengths (radii) are studied. The scaling with charged particle multiplicity of the apparent system volume at final interaction is studied for the RHIC energy domain. The multiplicity scaling of the measured correlation radii is found to be independent of colliding system and collision energy.

©2009 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.80.024905
DOI: 10.1103/PhysRevC.80.024905
PACS: 25.75.Nq; 25.75.Gz
  • 25.75.Nq
    Quark deconfinement, quark-gluon plasma production, and phase transitions in relativistic heavy-ion collisions
  • 25.75.Gz
    Particle correlations and fluctuations in relativistic heavy-ion collisions
  • YEAR: 2009

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