Herwig 7.2 release note
Herwig 7.2 release note
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DOI：
10.1140/epjc/s10052-020-8011-x
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发表时间：
2020-05-20
影响因子：
4.4
通讯作者：
Webster, Stephen
中科院分区：
文献类型：
--
作者：
Bellm, Johannes;Bewick, Gavin;Webster, Stephen
Monte Carlo事件生成器Herwig（7.2版）的新版本现已推出。这个版本在主要版本7.0的基础上进行了一些改进，主要有：在LO和NLO QCD中，偶极簇射与多喷注合并;偶极簇射和角序部分子簇射中的自旋关联;角序部分子簇射中演化变量的改进选择;改进偶极簇射中的质量效应和顶部衰变，改进多部分子相互作用的模拟，包括衍射过程;一个新的重子色重联模型;改进奇异生产;以及一个新的调强子化参数和支持通用洛伦兹结构的BSM模型。本文介绍了7.1和7.2版的新特性。
A new release of the Monte Carlo event generator Herwig (version 7.2) is now available. This version introduces a number of improvements over the major version 7.0, notably: multi-jet merging with the dipole shower at LO and NLO QCD; spin correlations in both the dipole and angular-ordered parton showers; an improved choice of evolution variable in the angular-ordered parton shower; improvements to mass effects and top decays in the dipole shower, improvements to the simulation of multiple-parton interactions, including diffractive processes; a new model for baryonic colour reconnection; improvements to strangeness production; as well as a new tune of the hadronisation parameters and support for generic Lorentz structures in BSM models. This article illustrates new features of versions 7.1 and 7.2.