论文标题
领先喷气的分析两环软函数$ p_t $
The analytic two-loop soft function for leading-jet $p_T$
论文作者
论文摘要
我们介绍了与任何颜色 - 单缝系统（例如〜a higgs或$ z $ boson）相关的领先射流的横向动量分布的两环软函数的计算。这构成了上述分布的重新点播的中心成分以及在近隔到接头到领先的对数顺序的喷气式视野横截面，这两者在大型Hadron Collider的Precision Physics计划中都起着重要作用。计算是在软共线有效理论中进行的，并适当地正规化了相位空间积分中发生的速度差异。我们通过采用指数调节器并在Jet Radius $ r $中进行劳伦（Lourent）扩展来获得分析结果。本文将所有表达式呈现为辅助文件。
We present the calculation of the two-loop soft function for the transverse momentum distribution of the leading jet produced in association with any colour-singlet system (e.g.~a Higgs or a $Z$ boson). This constitutes a central ingredient for the resummation of the above distribution as well as the jet-vetoed cross section at the next-to-next-to-next-to-leading logarithmic order, both of which play an important role in the precision physics programme at the Large Hadron Collider. The calculation is performed in soft-collinear effective theory with an appropriate regularisation of the rapidity divergences that occur in the phase-space integrals. We obtain analytic results by employing an exponential regulator and by taking a Laurent expansion in the jet radius $R$. All expressions are presented as ancillary files with this article.
