相干演化方程的一种新的Monte Carlo研究
A new Monte Carlo study of evolution equation with coherence
摘要：
我们用基于蒙特卡罗方法的CohRad程序数值求解CCFM演化方程。我们讨论了去除软排放和非Sudakov形状因子的影响，通过比较得到的分布作为累积的横动量或质子的纵向动量的分数的函数。我们还比较了在胶子通道中CCFM与DGFM方程的解。最后，我们使用所谓的扩散图分析解决方案的红外行为。
英文摘要：
We solve CCFM evolution equation numerically using the CohRad program based on Monte Carlo methods. We discuss the effects of removing soft emissions and non-Sudakov form factor by comparing the obtained distributions as functions of accumulated transverse momenta or fractions of proton's longitudinal momenta. We also compare the solution of the CCFM with the DGLAP equation in the gluonic channel. Finally, we analyze the infra-red behaviour of solutions using the so-called diffusion plots.
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