论文标题
Parton阵雨和Parton分布功能的演变
Evolution of parton showers and parton distribution functions
论文作者
论文摘要
Parton淋浴事件发生器中的初始状态演变涉及Parton分布功能。我们检查了系统从较高量表发展到较低量表而不初始状态分裂的概率。一个简单的参数表明，当在两个尺度上乘以parton分布的比率时，这种概率应与Parton分布函数无关。我们将其称为PDF属性。我们检查了PDF属性是否实际使用Pythia和扣除额拥有。我们还测试了扣除淋浴的相关特性，并讨论结果背后的物理。
Initial state evolution in parton shower event generators involves parton distribution functions. We examine the probability for the system to evolve from a higher scale to a lower scale without an initial state splitting. A simple argument suggests that this probability, when multiplied by the ratio of the parton distributions at the two scales, should be independent of the parton distribution functions. We call this the PDF property. We examine whether the PDF property actually holds using Pythia and Deductor. We also test a related property for the Deductor shower and discuss the physics behind the results.
