Charm hadron production in relativistic heavy ion collisions within a quark combination model
Charm hadron production in relativistic heavy ion collisions within a quark combination model
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夸克组合模型内相对论性重离子碰撞中 Charm 强子的产生
DOI：
10.1103/physrevc.78.064911
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发表时间：
2008-08
影响因子：
3.1
通讯作者：
Yao Tao
中科院分区：
文献类型：
--
作者：
Xie Qu-bing;Zhou Wei;Yao Tao
We investigate charm hadron production in relativistic heavy ion collisions with the quark combination model. The p{sub T} dependencies of the charm baryon-to-meson ratios such as ({lambda}{sub c}+{lambda}{sub c}/D{sup 0}+D{sup 0}), ({lambda}{sub c}+{lambda}{sub c}/D{sup +}+D{sup -}), and ({lambda}{sub c}+{lambda}{sub c}/D{sub s}{sup +}+D{sub s}{sup -}) in Au+Au collisions at 200 GeV are obtained. The charm baryon enhancement in the intermediate p{sub T} range is very prominent, which, together with the strangeness enhancement, further affects the charm hadron ratios. The modified charm hadron ratios lead to a {approx}17% increase of the charm cross section given by PHENIX. The dependencies of the charm hadron ratios on energy, centrality, and other parameters are also investigated. Predictions of the charm hadron ratios for the upgrade of the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC) are presented.
We investigate charm hadron production in relativistic heavy ion collisions with the quark combination model. The p{sub T} dependencies of the charm baryon-to-meson ratios such as ({lambda}{sub c}+{lambda}{sub c}/D{sup 0}+D{sup 0}), ({lambda}{sub c}+{lambda}{sub c}/D{sup +}+D{sup -}), and ({lambda}{sub c}+{lambda}{sub c}/D{sub s}{sup +}+D{sub s}{sup -}) in Au+Au collisions at 200 GeV are obtained. The charm baryon enhancement in the intermediate p{sub T} range is very prominent, which, together with the strangeness enhancement, further affects the charm hadron ratios. The modified charm hadron ratios lead to a {approx}17% increase of the charm cross section given by PHENIX. The dependencies of the charm hadron ratios on energy, centrality, and other parameters are also investigated. Predictions of the charm hadron ratios for the upgrade of the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC) are presented.
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DOI：
10.1088/0954-3899/32/2/l01
发表时间：
2005-05
期刊：
Journal of Physics G
影响因子：
--
作者：
C. B. Yang
通讯作者：
C. B. Yang
DOI：
10.1088/0954-3899/32/12/s38
发表时间：
2006-07
期刊：
Journal of Physics G
影响因子：
--
作者：
Zhangbu Xu
通讯作者：
Zhangbu Xu
影响因子：
5
作者：
Qun Wang;G. Gustafson;Yi Jin;Q. Xie
通讯作者：
Qun Wang;G. Gustafson;Yi Jin;Q. Xie
DOI：
10.1088/0954-3899/35/10/104013
发表时间：
2008-05
期刊：
Journal of Physics G
影响因子：
--
作者：
F. Becattini;J. Manninen
通讯作者：
F. Becattini;J. Manninen
DOI：
10.1088/0954-3899/34/8/s86
发表时间：
2007-02
期刊：
--
影响因子：
--
作者：
C. Zhong
通讯作者：
C. Zhong