φ-meson production at forward/backward rapidity in high-energy nuclear collisions from a multiphase transport model

被引：5
|
作者：
Ye, Y. J. [1 ,2 ]
Chen, J. H. [1 ]
Ma, Y. G. [1 ,3 ]
Zhang, S. [1 ]
Zhong, C. [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] ShanghaiTech Univ, Shanghai 200031, Peoples R China
来源：
PHYSICAL REVIEW C | 2016年 / 93卷 / 04期
基金：
中国国家自然科学基金;
关键词：
HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; PARTON; COLLABORATION; PERSPECTIVE; MATTER;
D O I：
10.1103/PhysRevC.93.044904
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Within the framework of a multiphase transport model (AMPT), the phi-meson production is studied in d + Au collisions at root s(NN)= 200 GeV in the forward (d-going, 1.2 < y < 2.2) and backward (Au-going, -2.2 < y < -1.2) directions. The AMPT model with string melting version (parton cascade turning on) describes the experimental data well, while the pure hadronic transport scenario of the AMPT model underestimates the phi-meson production rate in comparison with the data. Detailed investigations including the rapidity, transverse momentum, and collision system size dependencies of phi-meson nuclear modification factor indicate that a combination of the initial-state effect and a follow-up parton cascade is required in the AMPT model to describe the data. Similar calculations are also present in p + Pb collisions at root s(NN)= 5.02 TeV and p + p collisions at root s(NN)= 2.76 TeV. The findings from a comparison of AMPT model study with the data are consistent with that at RHIC energy.
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页数：5
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