Phys. Rev. Lett.
87,
112304
(2001)
[5 pages]
Model-Independent Source Imaging Using Two-Pion Correlations in (2 to 8)AGeV Au+Au Collisions
S. Y. Panitkin et al. (E895 Collaboration)
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S. Y. Panitkin7, N. N. Ajitanand12, J. Alexander12, M. Anderson5, D. Best1, F. P. Brady5, T. Case1, W. Caskey5, D. Cebra5, J. Chance5, P. Chung12, B. Cole4, K. Crowe1, A. Das10, J. Draper5, M. Gilkes11, S. Gushue2, M. Heffner5, A. Hirsch11, E. Hjort11, L. Huo6, M. Justice7, M. Kaplan3, D. Keane7, J. Kintner8, J. Klay5, D. Krofcheck9, R. Lacey12, J. Lauret12, M. A. Lisa10, H. Liu7, Y. M. Liu6, R. McGrath12, Z. Milosevich3, G. Odyniec1, D. Olson1, C. Pinkenburg12, N. Porile11, G. Rai1, H. G. Ritter1, J. Romero5, R. Scharenberg11, L. S. Schroeder1, B. Srivastava11, N. T. B. Stone2, T. J. M. Symons1, S. Wang7, R. Wells10, J. Whitfield3, T. Wienold1, R. Witt7, L. Wood5, X. Yang4, W. N. Zhang6, Y. Zhang4, D. A. Brown13, and P. Danielewicz14 (E895 Collaboration)
1Lawrence Berkeley National Laboratory, Berkeley, California 94720 2Brookhaven National Laboratory, Upton, New York 11973 3Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 4Columbia University, New York, New York 10027 5University of California, Davis, California 95616 6Harbin Institute of Technology, Harbin 150001, People's Republic of China 7Kent State University, Kent, Ohio 44242 8St. Mary's College of California, Moraga, California 94575 9University of Auckland, Auckland, New Zealand 10The Ohio State University, Columbus, Ohio 43210 11Purdue University, West Lafayette, Indiana 47907 12State University of New York, Stony Brook, New York 11794 13University of Washington, Seattle, Washington 98195 14Michigan State University, East Lansing, Michigan 48824
Received 9 June 2000; published 24 August 2001
We report a particle source imaging analysis based on two-pion correlations in high multiplicity Au+Au collisions at beam energies between 2A and 8AGeV. We apply the imaging technique introduced by Brown and Danielewicz, which allows a model-independent extraction of source functions with useful accuracy out to relative pion separations of about 20 fm. The extracted source functions have Gaussian shapes. Values of source functions at zero separation are almost constant across the energy range under study. Imaging results are found to be consistent with conventional source parameters obtained from a multidimensional Hanburg-Brown–Twiss analysis.
© 2001 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.112304
DOI:
10.1103/PhysRevLett.87.112304
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