论文标题
具有初始状态parton的Parton阵雨中的多变量演化
Multivariable evolution in parton showers with initial state partons
论文作者
论文摘要
一个人可以使用多个刻度变量来定义Parton分裂参数空间中的表面家族，以定义Parton淋浴的演变。在较早的论文中，我们开发了用于电子 - 峰值歼灭的想法。在这里，我们使用多个比例尺变量用于带有初始状态部分的Parton淋浴。然后，我们需要更复杂的分析，因为Parton分布函数的演变必须与Parton淋浴的演化协调。我们使所需的连接比我们早期的工作更精确，即使对于一个比例变量的情况也是如此。然后，我们开发一个具有三个比例变量的示例，与通常的淋浴公式相比，这将带来优势，而只有一个比例变量。我们为Drell-Yan Muon对生产提供结果。
One can use more than one scale variable to define the family of surfaces in the space of parton splitting parameters that define the evolution of a parton shower. In an earlier paper, we developed this idea for electron-positron annihilation. Here, we use multiple scale variables for a parton shower with initial state partons. Then we need a more sophisticated analysis because the evolution of parton distribution functions must be coordinated with the parton shower evolution. We make the needed connections more precise than in our earlier work, even for the case of just one scale variable. Then we develop an example with three scale variables, which leads to advantages compared to the usual shower formulation with only one scale variable. We provide results for Drell-Yan muon pair production.
