收藏本站
收藏 | 手机打开
二维码
手机客户端打开本文

Shear viscosity to entropy density ratio and liquid-gas phase transition

【摘要】:正Liquid-gas phase transition is an essential phenomenon in nuclear reaction.In this work,we calculate the shear viscosity to entropy density ratio(η/s) for an equilibrated system in intermediate energy heavy ion collisions within the framework of the BUU model.We simulate the collisions system of Au+Au at different incident energy in a box with periodic boundary conditions after a specific time determined by the mean density.After equilibration of the system,we extract the temperature,press and energy density by phase space to calculateηand s using the Green-Kubb formulas.We study the relationship betweenη/s and incident energy or temperature and try to find the minimum value of the ratio,which could be a signal of liquid-gas phase transition.

知网文化
 快捷付款方式  订购知网充值卡  订购热线  帮助中心
  • 400-819-9993
  • 010-62982499
  • 010-62783978