论文标题
Baryon停止作为相对论的马尔可夫过程
Baryon stopping as a relativistic Markov process in phase space
论文作者
论文摘要
我们重新考虑巴里昂在非平衡统计框架中停止在相对论的重离子碰撞中。该方法通过适当衍生的波动 - 散文关系将基于量子染色体动力学的早期制剂与相对论扩散模型结合在一起，从而允许与QCD一致的完全依赖时间的理论。我们在时空中使用现有的框架来用于相对论的随机过程，该过程在相位空间中是Markovian，并将其调整以在速度空间中推导fokker-Planck方程，该方程在数值上解决了。速度空间中净 - 蛋白质分布函数的时间演变与停止从CERN超级质子同步器和BNL相对论重离子对撞机的数据相吻合。
We reconsider baryon stopping in relativistic heavy-ion collisions in a nonequilibrium-statistical framework. The approach combines earlier formulations based on quantum chromodynamics with a relativistic diffusion model through a suitably derived fluctuation-dissipation relation, thus allowing for a fully time-dependent theory that is consistent with QCD. We use an existing framework for relativistic stochastic processes in spacetime that are Markovian in phase space, and adapt it to derive a Fokker-Planck equation in rapidity space, which is solved numerically. The time evolution of the net-proton distribution function in rapidity space agrees with stopping data from the CERN Super Proton Synchrotron and the BNL Relativistic Heavy Ion Collider.
