Multivariable evolution in final state parton shower algorithms
PHYSICAL REVIEW D(2022)
摘要
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.
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关键词
final state parton shower,multivariable evolution,algorithms
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