We investigate the nuclear modification factor ( R AA ) of identified particles as a function of transverse momentum ( p T ) in Pb–Pb collisions at ##IMG## [http://ej.iop.org/images/0954-3899/47/7/075101/gab8744ieqn1.gif] {$\sqrt{{s}_{\text{NN}}}=$} 2.76 and 5.02 TeV, as well as p-Pb collision at 5.02 TeV in the framework of Boltzmann transport equation with relaxation time approximation. In this framework, the initial distribution of particles is chosen as the Tsallis distribution and the local equilibrium distribution as the Boltzmann–Gibbs blast-wave distribution. The non-extensive parameter q pp , the Tsallis temperature T pp and the equilibrium temperature T eq are set to be in common for all particles, while the ratio of kinetic freeze-out time to relaxation time t f / τ is different for different particles when we performed a combined fit to th...

中文翻译：

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使用玻尔兹曼输运方程的Pb–Pb和p-Pb碰撞中的核修饰因子

在## IMG ## [http://ej.iop.org/images/0954-3899]，我们研究了已鉴定颗粒的核修饰因子（R AA）与Pb–Pb碰撞中的横向动量（p T）的关系。 /47/7/075101/gab8744ieqn1.gif] {$ \ sqrt {{s} _ {\ text {NN}}} = $} 2.76和5.02 TeV，以及在以下情况下在5.02 TeV时的p-Pb碰撞具有弛豫时间近似的玻尔兹曼输运方程。在此框架中，粒子的初始分布选择为Tsallis分布，局部平衡分布选择为Boltzmann-Gibbs爆炸波分布。将非扩展参数q pp，Tsallis温度T pp和平衡温度T eq设置为所有粒子都相同，