Rapidity and k_T dependence of HBT correlations in Au+Au collisions at 200 GeV with PHOBOS

Details Rapidity and k_T dependence of HBT correlations in Au+Au collisions at 200 GeV with PHOBOS Rapidity and k_T dependence of HBT correlations in Au+Au collisions at 200 GeV with PHOBOS

2004-06-24

arxiv.org/abs/nucl-ex/0406027v1

J.Phys. G30 (2004) S1049-S1052

Physics

Nuclear Physics

Nuclear Experiment

5 pages, 2 figures. To appear in the proceedings of Seventeenth International Conference on Ultra-Relativistic Nucleus-Nucleus

Scientific paper

10.1088/0954-3899/30/8/056

Two-particle correlations of identical charged pion pairs from Au+Au collisions at sqrt(s_NN) = 200 GeV were measured by the PHOBOS experiment at RHIC. Data for the most central (0--15%) events were analyzed with Bertsch-Pratt (BP) and Yano-Koonin-Podgoretskii (YKP) parameterizations using pairs with rapidities of 0.4 < y < 1.3 and transverse momenta 0.1 < k_T < 1.4 GeV/c. The Bertsch-Pratt radii decrease as a function of pair transverse momentum. The pair rapidity Y_pipi roughly scales with the source rapidity Y_YKP, indicating strong dynamical correlations.

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