半经典Boltzmann-Vlasov输运理论中的费米子粒子产生
Fermion particle production in semi-classical Boltzmann-Vlasov transport theory
摘要:
在(1+1)维和(3+1)维量子电动力学中,给出了在增强不变坐标系下,强电场作用下费米子粒子-反粒子产生的半经典Boltzmann-Vlasov方程的数值解.我们比较了玻尔兹曼-弗拉索夫的结果与最近的量子场论计算,发现很好的协议。我们的结论是,将玻尔兹曼-弗拉索夫方法扩展到QCD的情况下,应该允许我们做一个彻底的调查,如何反反应影响最近的结果,夸克和反夸克的横向动量分布的依赖第二色SU(3)的Casimir不变量。
英文摘要:
We present numerical solutions of the semi-classical Boltzmann-Vlasov equation for fermion particle-antiparticle production by strong electric fields in boost-invariant coordinates in (1+1) and (3+1) dimensional QED. We compare the Boltzmann-Vlasov results with those of recent quantum field theory calculations and find good agreement. We conclude that extending the Boltzmann-Vlasov approach to the case of QCD should allow us to do a thorough investigation of how back-reaction affects recent results on the dependence of the transverse momentum distribution of quarks and anti-quarks on a second Casimir invariant of color SU(3).
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