Systematic study for grey particles in relativistic nucleus + emulsion (Ag) interactions |
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| Authors: | Xiaorong Wang An Tai Benhao Sa Xu Cai |
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| Institution: | (1) Institute of Particle Physics, Huazhong Normal University, 430070 Wuhan, China;(2) Institute of High Energy Physics, Chinese Academy of Sciences, 100039 Beijing, China;(3) China Institute of Atomic Energy, 102413 Beijing, China;(4) FB Physik, Freie Universitat, 14195 Berlin, Germany |
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| Abstract: | The hadronic and string cascade model and the corresponding event generator LUCIAE are used to study systematically the production
of the grey particles in (14.6, 60 and 200A GeV)0 + Em, (2004 GeV)Si + Em, (200A GeV)S + Em and (11.6A GeV)Au + Em reactions. The dependences of the mean multiplicity,
the multiplicity distributions and the polar angular distributions of the grey particles on the incident energy, the projectile
mass and the collision centrality observed in emulsion experiments, respectively, are all reproduced by LUCIAE calculations.
In addition the effects of the rescattering on the grey particle production are also investigated.
Project supported by the National Natural Science Foundation of China (Grant Nos. 19575071 and 19875019) and DFG of Germany. |
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| Keywords: | relativistic heavy-ion collision grey particle emulsion experiments LUCIAE model |
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