Understanding single-top-quark production and jets at hadron colliders
Understanding single-top-quark production and jets at hadron colliders
复制标题
DOI：
10.1103/physrevd.70.114012
复制
发表时间：
2004-08
影响因子：
5
通讯作者：
Z. Sullivan
中科院分区：
文献类型：
--
作者：
Z. Sullivan
我提出了一个分析的全微分单顶夸克生产加上喷注在次领先的顺序。我描述了喷流定义，顶夸克质量，和高阶的形状和归一化的运动学分布的影响，并量化所有的理论不确定性。我解释了如何解释下一个领先的顺序喷流计算，并将它们与淋浴事件发生器进行比较。使用程序ZTOP，我表明，HERWIG和PYTHIA显着低估了s-通道和t-通道单顶夸克的生产，并提出了一个计划，以匹配相关的样本下一个领先的顺序预测。
I present an analysis of fully differential single-top-quark production plus jets at next-to-leading-order. I describe the effects of jet definitions, top-quark mass, and higher orders on the shapes and normalizations of the kinematic distributions, and quantify all theoretical uncertainties. I explain how to interpret next-to-leading-order jet calculations, and compare them to showering event generators. Using the program ZTOP, I show that HERWIG and PYTHIA significantly underestimate both s-channel and t-channel single-top-quark production, and propose a scheme to match the relevant samples to the next-to-leading-order predictions.