CalcHEP 3.4 for collider physics within and beyond the Standard Model

Abstract We present version 3.4 of the CalcHEP software package which is designed for effective evaluation and simulation of high energy physics collider processes at parton level. The main features of CalcHEP are the computation of Feynman diagrams, integration over multi-particle phase space and event simulation at parton level. The principle attractive key-points along these lines are that it has: (a) an easy startup and usage even for those who are not familiar with CalcHEP and programming; (b) a... Title of program: CalcHEP Catalogue Id: AEOV_v1_0 Nature of problem <ol> <li> Implement new models of particle interactions. </li> <li> Generate Feynman diagrams for a physical process in any implemented theoretical model. </li> <li> Integrate phase space for Feynman diagrams to obtain cross sections or particle widths taking into account kinematical cuts.</li> <li> Simulate collisions at modern colliders and generate respective unweighted events.</li> <li> Mix events for different subprocesses and connect them with the decays of unstable particles.</li> </ol> Versions of this program held in the CPC repository in Mendeley Data AEOV_v1_0; CalcHEP; 10.1016/j.cpc.2013.01.014 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)摘要：本文介绍CalcHEP软件包的3.4版本，该工具旨在实现高能物理对撞机过程的部分子级（parton level）有效计算与模拟。CalcHEP的核心功能包括费曼图（Feynman diagrams）计算、多粒子相空间积分以及部分子级事件模拟。其核心优势亮点如下：(a) 上手便捷、操作简单，即便对CalcHEP及编程不熟悉的用户也可轻松使用；(b) 程序名称：CalcHEP 目录编号：AEOV_v1_0 问题本质 1. 实现粒子相互作用的新模型； 2. 为任意已实现理论模型中的物理过程生成费曼图（Feynman diagrams）； 3. 对费曼图的相空间进行积分，结合运动学截断条件计算散射截面或粒子衰变宽度； 4. 模拟现代对撞机中的碰撞过程并生成对应的未加权事件； 5. 混合不同子过程的事件，并将其与不稳定粒子的衰变过程相衔接。 本程序在Mendeley数据集（Mendeley Data）的CPC知识库中的存档版本为：AEOV_v1_0; CalcHEP; 10.1016/j.cpc.2013.01.014 本程序源自贝尔法斯特女王大学托管的CPC程序库（1969-2018）