Diffusion or bounce back in relativistic heavy-ion collisions?

被引：5
|
作者：
Wolschin, G. [1 ]
Biyajima, M. [2 ]
Mizoguchi, T. [3 ]
机构：
[1] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany
[2] Shinshu Univ, Sch Gen Educ, Matsumoto, Nagano 3908621, Japan
[3] Toba Natl Coll Maritime Technol, Toba, Mie 5178501, Japan
来源：
EUROPEAN PHYSICAL JOURNAL A | 2008年 / 36卷 / 01期
关键词：
D O I：
10.1140/epja/i2007-10550-y
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 time evolution of pseudorapidity distributions of produced charged hadrons in d + Au collisions at root(NN)-N-s = 200GeV is investigated. Results of a nonequilibrium statistical relativistic diffusion model with three sources are compared with a macroscopic "bounce-back" model that does not allow for statistical equilibration at large times, but instead leads to motion reversal. When compared to the data, the results of the diffusion approach are more precise, thus emphasizing that the system is observed to be on its way to thermal equilibrium.
引用
收藏
页码：111 / 117
页数：7
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