相对论Boltzmann-Uehling-Uhlenbeck方程  

Relativistic BUU Equation

作　　者：余自强[1] 茅广军 卓益忠[2] 李祝霞[2] 孙喆民 

机构地区：[1]南开大学物理系,天津300071 [2]中国原子能研究院

出　　处：《高能物理与核物理》1992年第4期313-322,共10页High Energy Physics and Nuclear Physics

摘　　要：在Walecka的QHD-Ⅰ和QHD-Ⅱ关于核子-核子相互作用模型的基础上,采用闭合时间回路的格林函数方法并假设格林函数和自能项是质心坐标的缓变函数,推得由核子分布函数所满足的BUU方程,它包括Hartree和Fock自能项及Born碰撞项和它的交换项,结果表明质子和中子分布函数所满足的BUU方程是相互联立的。Based on the Waleck's models QHD-Ⅰ and QHD-Ⅱ describing the nucleon-nucleon in- teraction, the Boltzmann-Uehling-Uhlenbeck (BUU) equation, which is the time evolution of the nucleon distribution function including the Hartree and Fock self-energy terms as well as the Born collision term and its exchange term, has been derived by using the closed-time path Green's function technique and assuming that the Green's functions and the self-energy terms are slowly varying functions of the centre-of-mass coordinates. Our result shows that the BUU equation for proton and that for neutron are simultaneous each other.

关 键 词：相对论 质子 中子 碰撞 格林函数 

分 类 号：O572.341[理学—粒子物理与原子核物理]