论文标题
最终州Parton淋浴算法中的多变量演变
Multivariable evolution in final state parton shower algorithms
论文作者
论文摘要
人们可以使用多个比例变量在Parton分裂参数的空间中指定表面族,以定义Parton淋浴的演变。考虑到$ e^+e^ - $ nihihitation,我们使用两个变量,在这个二维空间中的特殊路径下,淋浴演变。此外,我们以特殊的方式对待具有柔软发射奇异性但没有界线奇异性的分裂函数的一部分。与通常的淋浴公式相比,这仅带有一个比例变量,从而带来了一定的优势。
One can use more than one scale variable to specify the family of surfaces in the space of parton splitting parameters that define the evolution of a parton shower. Considering $e^+e^-$ annihilation, we use two variables, with shower evolution following a special path in this two dimensional space. In addition, we treat in a special way the part of the splitting function that has a soft emission singularity but no collinear singularity. This leads to certain advantages compared to the usual shower formulation with only one scale variable.