Phys. Rev. C
71,
044906
(2005)
[21 pages]
Pion interferometry in Au+Au collisions at √sNN=200 GeV
J. Adams et al. STAR Collaboration
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J. Adams3, M. M. Aggarwal29, Z. Ahammed43, J. Amonett20, B. D. Anderson20, D. Arkhipkin13, G. S. Averichev12, S. K. Badyal19, Y. Bai27, J. Balewski17, O. Barannikova32, L. S. Barnby3, J. Baudot18, S. Bekele28, V. V. Belaga12, R. Bellwied46, J. Berger14, B. I. Bezverkhny48, S. Bharadwaj33, A. Bhasin19, A. K. Bhati29, V. S. Bhatia29, H. Bichsel45, A. Billmeier46, L. C. Bland4, C. O. Blyth3, B. E. Bonner34, M. Botje27, A. Boucham38, A. V. Brandin25, A. Bravar4, M. Bystersky11, R. V. Cadman1, X. Z. Cai37, H. Caines48, M. Calderón de la Barca Sánchez17, J. Castillo21, D. Cebra7, Z. Chajecki44, P. Chaloupka11, S. Chattopadhyay43, H. F. Chen36, Y. Chen8, J. Cheng41, M. Cherney10, A. Chikanian48, W. Christie4, J. P. Coffin18, T. M. Cormier46, J. G. Cramer45, H. J. Crawford6, D. Das43, S. Das43, M. M. de Moura35, A. A. Derevschikov31, L. Didenko4, T. Dietel14, S. M. Dogra19, W. J. Dong8, X. Dong36, J. E. Draper7, F. Du48, A. K. Dubey15, V. B. Dunin12, J. C. Dunlop4, M. R. Dutta Mazumdar43, V. Eckardt23, W. R. Edwards21, L. G. Efimov12, V. Emelianov25, J. Engelage6, G. Eppley34, B. Erazmus38, M. Estienne38, P. Fachini4, J. Faivre18, R. Fatemi17, J. Fedorisin12, K. Filimonov21, P. Filip11, E. Finch48, V. Fine4, Y. Fisyak4, K. Fomenko12, J. Fu41, C. A. Gagliardi39, J. Gans48, M. S. Ganti43, L. Gaudichet38, F. Geurts34, V. Ghazikhanian8, P. Ghosh43, J. E. Gonzalez8, O. Grachov46, O. Grebenyuk27, D. Grosnick42, S. M. Guertin8, Y. Guo46, A. Gupta19, T. D. Gutierrez7, T. J. Hallman4, A. Hamed46, D. Hardtke21, J. W. Harris48, M. Heinz2, T. W. Henry39, S. Hepplemann30, B. Hippolyte48, A. Hirsch32, E. Hjort21, G. W. Hoffmann40, H. Z. Huang8, S. L. Huang36, E. W. Hughes5, T. J. Humanic28, G. Igo8, A. Ishihara40, P. Jacobs21, W. W. Jacobs17, M. Janik44, H. Jiang8, P. G. Jones3, E. G. Judd6, S. Kabana2, K. Kang41, M. Kaplan9, D. Keane20, V. Yu. Khodyrev31, J. Kiryluk22, A. Kisiel44, E. M. Kislov12, J. Klay21, S. R. Klein21, A. Klyachko17, D. D. Koetke42, T. Kollegger14, M. Kopytine20, L. Kotchenda25, M. Kramer26, P. Kravtsov25, V. I. Kravtsov31, K. Krueger1, C. Kuhn18, A. I. Kulikov12, A. Kumar29, R. Kh. Kutuev13, A. A. Kuznetsov12, M. A. C. Lamont48, J. M. Landgraf4, S. Lange14, F. Laue4, J. Lauret4, A. Lebedev4, R. Lednicky12, S. Lehocka12, M. J. LeVine4, C. Li36, Q. Li46, Y. Li41, G. Lin48, S. J. Lindenbaum26, M. A. Lisa28, F. Liu47, L. Liu47, Q. J. Liu45, Z. Liu47, T. Ljubicic4, W. J. Llope34, H. Long8, R. S. Longacre4, M. López Noriega28, W. A. Love4, Y. Lu47, T. Ludlam4, D. Lynn4, G. L. Ma37, J. G. Ma8, Y. G. Ma37, D. Magestro28, S. Mahajan19, D. P. Mahapatra15, R. Majka48, L. K. Mangotra19, R. Manweiler42, S. Margetis20, C. Markert48, L. Martin38, J. N. Marx21, H. S. Matis21, Yu. A. Matulenko31, C. J. McClain1, T. S. McShane10, F. Meissner21, Yu. Melnick31, A. Meschanin31, M. L. Miller22, N. G. Minaev31, C. Mironov20, A. Mischke27, D. K. Mishra15, J. Mitchell34, B. Mohanty43, L. Molnar32, C. F. Moore40, D. A. Morozov31, M. G. Munhoz35, B. K. Nandi43, S. K. Nayak19, T. K. Nayak43, J. M. Nelson3, P. K. Netrakanti43, V. A. Nikitin13, L. V. Nogach31, S. B. Nurushev31, G. Odyniec21, A. Ogawa4, V. Okorokov25, M. Oldenburg21, D. Olson21, S. K. Pal43, Y. Panebratsev12, S. Y. Panitkin4, A. I. Pavlinov46, T. Pawlak44, T. Peitzmann27, V. Perevoztchikov4, C. Perkins6, W. Peryt44, V. A. Petrov13, S. C. Phatak15, R. Picha7, M. Planinic49, J. Pluta44, N. Porile32, J. Porter45, A. M. Poskanzer21, M. Potekhin4, E. Potrebenikova12, B. V. K. S. Potukuchi19, D. Prindle45, C. Pruneau46, J. Putschke23, G. Rakness30, R. Raniwala33, S. Raniwala33, O. Ravel38, R. L. Ray40, S. V. Razin12, D. Reichhold32, J. G. Reid45, G. Renault38, F. Retiere21, A. Ridiger25, H. G. Ritter21, J. B. Roberts34, O. V. Rogachevskiy12, J. L. Romero7, A. Rose46, C. Roy38, L. Ruan36, R. Sahoo15, I. Sakrejda21, S. Salur48, J. Sandweiss48, I. Savin13, P. S. Sazhin12, J. Schambach40, R. P. Scharenberg32, N. Schmitz23, K. Schweda21, J. Seger10, P. Seyboth23, E. Shahaliev12, M. Shao36, W. Shao5, M. Sharma29, W. Q. Shen37, K. E. Shestermanov31, S. S. Shimanskiy12, E Sichtermann21, F. Simon23, R. N. Singaraju43, G. Skoro12, N. Smirnov48, R. Snellings27, G. Sood42, P. Sorensen21, J. Sowinski17, J. Speltz18, H. M. Spinka1, B. Srivastava32, A. Stadnik12, T. D. S. Stanislaus42, R. Stock14, A. Stolpovsky46, M. Strikhanov25, B. Stringfellow32, A. A. P. Suaide35, E. Sugarbaker28, C. Suire4, M. Sumbera11, B. Surrow22, T. J. M. Symons21, A. Szanto de Toledo35, P. Szarwas44, A. Tai8, J. Takahashi35, A. H. Tang27, T. Tarnowsky32, D. Thein8, J. H. Thomas21, S. Timoshenko25, M. Tokarev12, T. A. Trainor45, S. Trentalange8, R. E. Tribble39, O. D. Tsai8, J. Ulery32, T. Ullrich4, D. G. Underwood1, A. Urkinbaev12, G. Van Buren4, M. van Leeuwen21, A. M. Vander Molen24, R. Varma16, I. M. Vasilevski13, A. N. Vasiliev31, R. Vernet18, S. E. Vigdor17, Y. P. Viyogi43, S. Vokal12, S. A. Voloshin46, M. Vznuzdaev25, W. T. Waggoner10, F. Wang32, G. Wang20, G. Wang5, X. L. Wang36, Y. Wang40, Y. Wang41, Z. M. Wang36, H. Ward40, J. W. Watson20, J. C. Webb17, R. Wells28, G. D. Westfall24, A. Wetzler21, C. Whitten Jr.8, H. Wieman21, S. W. Wissink17, R. Witt2, J. Wood8, J. Wu36, N. Xu21, Z. Xu4, Z. Z. Xu36, E. Yamamoto21, P. Yepes34, V. I. Yurevich12, Y. V. Zanevsky12, H. Zhang4, W. M. Zhang20, Z. P. Zhang36, P. A Zolnierczuk17, R. Zoulkarneev13, Y. Zoulkarneeva13, and A. N. Zubarev12 (STAR Collaboration)
1Argonne National Laboratory, Argonne, Illinois 60439
2University of Bern, 3012 Bern, Switzerland
3University of Birmingham, Birmingham, United Kingdom
4Brookhaven National Laboratory, Upton, New York 11973
5California Institute of Technology, Pasedena, California 91125
6University of California, Berkeley, California 94720
7University of California, Davis, California 95616
8University of California, Los Angeles, California 90095
9Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
10Creighton University, Omaha, Nebraska 68178
11Nuclear Physics Institute AS CR, 250 68 ŘežŘež/Prague, Czech Republic
12Laboratory for High Energy (JINR), Dubna, Russia
13Particle Physics Laboratory (JINR), Dubna, Russia
14University of Frankfurt, Frankfurt, Germany
15Insitute of Physics, Bhubaneswar 751005, India
16Indian Institute of Technology, Mumbai, India
17Indiana University, Bloomington, Indiana 47408
18Institut de Recherches Subatomiques, Strasbourg, France
19University of Jammu, Jammu 180001, India
20Kent State University, Kent, Ohio 44242
21Lawrence Berkeley National Laboratory, Berkeley, California 94720
22Massachusetts Institute of Technology, Cambridge, MA 02139-4307
23Max-Planck-Institut für Physik, Munich, Germany
24Michigan State University, East Lansing, Michigan 48824
25Moscow Engineering Physics Institute, Moscow Russia
26City College of New York, New York City, New York 10031
27NIKHEF, Amsterdam, The Netherlands
28Ohio State University, Columbus, Ohio 43210
29Panjab University, Chandigarh 160014, India
30Pennsylvania State University, University Park, Pennsylvania 16802
31Institute of High Energy Physics, Protvino, Russia
32Purdue University, West Lafayette, Indiana 47907
33University of Rajasthan, Jaipur 302004, India
34Rice University, Houston, Texas 77251
35Universidade de Sao Paulo, Sao Paulo, Brazil
36University of Science & Technology of China, Anhui 230027, China
37Shanghai Institute of Applied Physics, Shanghai 201800, China
38SUBATECH, Nantes, France
39Texas A & M University, College Station, Texas 77843
40University of Texas, Austin, Texas 78712
41Tsinghua University, Beijing 100084, China
42Valparaiso University, Valparaiso, Indiana 46383
43Variable Energy Cyclotron Centre, Kolkata 700064, India
44Warsaw University of Technology, Warsaw, Poland
45University of Washington, Seattle, Washington 98195
46Wayne State University, Detroit, Michigan 48201
47Institute of Particle Physics, CCNU (HZNU), Wuhan 430079, China
48Yale University, New Haven, Connecticut 06520
49University of Zagreb, Zagreb, HR-10002, Croatia
Received 18 November 2004; published 28 April 2005
We present a systematic analysis of two-pion interferometry in Au+Au collisions at √sNN=200 GeV using the STAR detector at Relativistic Heavy Ion Collider. We extract the Hanbury-Brown and Twiss radii and study their multiplicity, transverse momentum, and azimuthal angle dependence. The Gaussianness of the correlation function is studied. Estimates of the geometrical and dynamical structure of the freeze-out source are extracted by fits with blast-wave parametrizations. The expansion of the source and its relation with the initial energy density distribution is studied.
© 2005 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevC.71.044906
DOI:
10.1103/PhysRevC.71.044906
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