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Energy dependence of string fragmentation function and $phi$ meson production | | Ben-Hao Sa
; Zhong-Qi Wang
; Xu Cai
; Dai-Mei Zhou
; C. Kobdaj
; Yu-Peng Yan
; | | Date: |
30 May 2002 | | Journal: | Commun.Theor.Phys. 41 (2004) 291-295 | | Subject: | nucl-th | | Affiliation: | ciae), Xu Cai, Dai-Mei Zhou (Wuhan), C. Kobdaj, Yu-Peng Yan (sut, Thailand | | Abstract: | The $phi$ meson productions in $Au+Au$ and/or $Pb+Pb$ collisions at AGS, SPS, RHIC, and LHC energies have been studied systematically with a hadron and string cascade model LUCIAE. After considering the energy dependence of the model parameter $alpha$ in string fragmentation function and adjusting it to the experimental data of charged multiplicity to a certain extent, the model predictions for $phi$ meson yield, rapidity, and/or transverse mass distributions are compatible with the experimental data at AGS, SPS and RHIC energies. A calculation for $Pb+Pb$ collisions at LHC energy is given as well. The obtained fractional variable in string fragmentation function shows a saturation in energy dependence. It is discussed that the saturation of fractional variable in string fragmentation function might be a qualitative representation of the energy dependence of nuclear transparency. | | Source: | arXiv, nucl-th/0205078 | | Services: | Forum | Review | PDF | Favorites | |
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