Azimuthal distributions of final-state particles and fragments and transverse structure of emission source in high-energy nucleus--nucleus collisions
Liu Fu-Hu (刘福虎)a, Ma Yin-Qun (马引群)bc, Duan Mai-Ying (段麦英)a
a Department of Physics, Shanxi University, Taiyuan 030006, China; b Department of Physics, Taiyuan Terchers College, Taiyuan 030001, Chinac Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
Abstract The azimuthal distributions of final-state particles and fragments produced in high-energy nucleus--nucleus collisions are described by a modified multisource ideal gas model which contains the expansions and movements of the emission sources. The transverse structures of the sources are given in the transverse plane by momentum components $p_x$ and $p_y$, and described by parameters in the model. The results of the azimuthal distributions, calculated by the Monte Carlo method, are in good agreement with the experimental data in nucleus--nucleus collisions at high energies.
Received: 24 March 2005
Revised: 16 May 2005
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10275042 and 10475054),the Shanxi Provincial Natural Science Foundation (Grant No 20021006), and the
Shanxi Provincial Foundation for Returned Overseas Scholars.
Cite this article:
Liu Fu-Hu (刘福虎), Ma Yin-Qun (马引群), Duan Mai-Ying (段麦英) Azimuthal distributions of final-state particles and fragments and transverse structure of emission source in high-energy nucleus--nucleus collisions 2005 Chinese Physics 14 2458
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