Marzani Simone, Schunk Lais, Soyez Gregory
1Dipartimento di Fisica, Università di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genoa, Italy.
2Deutsches Elektronen-Synchroton DESY, Notkestraße 85, 22607 Hamburg, Germany.
Eur Phys J C Part Fields. 2018;78(2):96. doi: 10.1140/epjc/s10052-018-5579-5. Epub 2018 Feb 2.
We present a first-principle computation of the mass distribution of jets which have undergone the grooming procedure known as Soft Drop. This calculation includes the resummation of the large logarithms of the jet mass over its transverse momentum, up to next-to-logarithmic accuracy, matched to exact fixed-order results at next-to-leading order. We also include non-perturbative corrections obtained from Monte-Carlo simulations and discuss analytic expressions for hadronisation and Underlying Event effects.
我们给出了经过名为软滴的修整程序的喷注质量分布的第一性原理计算。该计算包括对喷注质量相对于其横向动量的大对数进行重整化，直至次对数精度，并与次领头阶的精确固定阶结果相匹配。我们还纳入了从蒙特卡罗模拟获得的非微扰修正，并讨论了强子化和底层事件效应的解析表达式。
