论文标题
Parton阵雨的大对数总和
Summations of large logarithms by parton showers
论文作者
论文摘要
我们提出了一种检查Parton淋浴如何总和大对数的方法。在这种方法中，人们可以与分布的适当整体转换，以观察到感兴趣。然后，一个人重新定义了Parton淋浴，以便获得转换的分布，作为指数，可以计算指数的扰动扩展中的术语。我们使用多种淋浴算法将此一般程序应用于电子 - 峰值歼灭的推力分布。在我们使用的方法中，最普遍适用的方法是通过数值集成来计算指数中的某些扰动系数，并测试它们是否与推力对数的近代领导者求和。
We propose a method to examine how a parton shower sums large logarithms. In this method, one works with an appropriate integral transform of the distribution for the observable of interest. Then, one reformulates the parton shower so as to obtain the transformed distribution as an exponential for which one can compute the terms in the perturbative expansion of the exponent. We apply this general program to the thrust distribution in electron-positron annihilation, using several shower algorithms. Of the approaches that we use, the most generally applicable is to compute some of the perturbative coefficients in the exponent by numerical integration and to test whether they are consistent with next-to-leading-log summation of the thrust logarithms.
