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arXiv · 1308.1197

Simulation of energy scan of pion interferometry in central Au + Au collisions at relativistic energies

Z. Q. Zhang·S. Zhang·Y. G. Ma
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Abstract

We present a systematic analysis of two-pion interferometry for the central Au+Au collisions at $\sqrt{S_{NN}}$ = 3, 5, 7, 11, 17, 27, 39, 62, 130 and 200 GeV/c with the help of a multiphase transport (AMPT) model. Emission source-size radius parameters $R_{long}$, $R_{out}$, $R_{side}$ and the chaotic parameter $λ$ are extracted and compared with the experimental data. Transverse momentum and azimuthal angle dependencies of the HBT radii are also discussed for central Au+Au collisions at 200 GeV/c. The results show that the HBT radii in central collisions do not change much above 7 GeV/c. For central collisions at 200GeV/c, the radii decrease with the increasing of transverse momentum $p_{T}$ but not sensitive to the azimuthal angle. These results provide a theoretical reference for the energy scan program of the RHIC-STAR experiment.

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Z. Q. Zhang, S. Zhang, Y. G. Ma. 2013-08-06. Simulation of energy scan of pion interferometry in central Au + Au collisions at relativistic energies. https://doi.org/10.1088/1674-1137%2F38%2F1%2F014102

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