论文标题
关于新的“全彩” parton淋浴的评论
Comments on a new `full colour' parton shower
论文作者
论文摘要
已经提出了一种新的parton淋浴算法,要求在“全彩”(arxiv:2001.11492)提供软光洛隆重新调整。在本文中,我们表明该算法在这个目标中没有成功。我们表明,全彩色准确性需要在幅度级别定义的Sudakov因素,并且Arxiv中使用的简单parton-shower单位性参数:2001.11492是不够的。
A new parton shower algorithm has been presented with the claim of providing soft-gluon resummation at `full colour' (arXiv:2001.11492). In this paper we show that the algorithm does not succeed in this goal. We show that full colour accuracy requires the Sudakov factors to be defined at amplitude level and that the simple parton-shower unitarity argument employed in arXiv:2001.11492 is not sufficient.