Diffusion of hidden charm mesons in hadronic medium

被引：7
|
作者：
Mitra, Sukanya [1 ]
Ghosh, Sabyasachi [2 ]
Das, Santosh K. [3 ,4 ]
Sarkar, Sourav [1 ]
Alam, Jan-e [1 ]
机构：
[1] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Div Theoret Phys, 1-AF Bidhan Nagar, Kolkata 700064, W Bengal, India
[2] Univ Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz 271, BR-01140070 Sao Paulo, SP, Brazil
[3] Univ Catania, Dept Phys & Astron, Via Santa Sofia 64,1, I-95125 Catania, Italy
[4] Ist Nazl Fis Nucl, LNS, Via Santa Sofia 62, I-95123 Catania, Italy
来源：
NUCLEAR PHYSICS A | 2016年 / 951卷
基金：
巴西圣保罗研究基金会;
关键词：
Drag and diffusion coefficients; Hidden charm meson; Heavy ion collision; ANOMALOUS J/PSI SUPPRESSION; QUARK-GLUON PLASMA; COLLISIONS; DISSOCIATION;
D O I：
10.1016/j.nuclphysa.2016.03.035
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：
The drag and diffusion coefficients of a hot hadronic medium have been evaluated by using hidden charm mesons as probes. The scattering amplitudes required for the evaluation of these coefficients are calculated using an effective theory and scattering lengths obtained from lattice QCD calculations. It is found that although the magnitude of the transport coefficients are small their temperature variation is strong. The insignificant momentum diffusion of J/psi in the hadronic medium keeps their momentum distribution largely unaltered. Therefore, the task of characterization of quark gluon plasma by using the observed suppression of J/psi at high momentum will be comparatively easier. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：75 / 85
页数：11
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