SDECAY: a Fortran code for the decays of the supersymmetric particles in the MSSM

Abstract We present the Fortran code SDECAY, which calculates the decay widths and branching ratios of all the supersymmetric particles in the Minimal Supersymmetric Standard Model, including higher order effects. Besides the usual two-body decays of sfermions and gauginos and the three-body decays of charginos, neutralinos and gluinos, we have also implemented the three-body decays of stops and sbottoms, and even the four-body decays of the stop; the important loop-induced decay modes are also includ... Title of program: SDECAY Version 1.1 (September 2004) Catalogue Id: ADVJ_v1_0 Nature of problem Numerical calculation of the decay widths and branching ratios of supersymmetric particles in the Minimal Supersymmetric Standard Model (MSSM). The program calculates two-, three- and four-body decays and loop decays. It includes the SUSY-QCD corrections to two-body decays involving strongly interacting particles. The top-quark decays within the MSSM are evaluated as well. Versions of this program held in the CPC repository in Mendeley Data ADVJ_v1_0; SDECAY Version 1.1 (September 2004); 10.1016/j.cpc.2005.01.012 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)摘要 本文介绍了Fortran语言编写的程序SDECAY，该程序可计算最小超对称标准模型（Minimal Supersymmetric Standard Model, MSSM）中所有超对称粒子的衰变宽度与分支比，且包含高阶修正效应。除标量费米子（sfermions）与规范费米子（gauginos）的常规两体衰变、带电微子（charginos）、中性微子（neutralinos）及胶微子（gluino）的三体衰变外，本程序还实现了顶夸克超伴子（stop）与底夸克超伴子（sbottom）的三体衰变，乃至顶夸克超伴子的四体衰变；重要的圈诱导衰变模式亦已纳入。 程序名称：SDECAY 版本1.1（2004年9月） 目录编号：ADVJ_v1_0 问题属性 对最小超对称标准模型（MSSM）中超对称粒子的衰变宽度与分支比进行数值计算。本程序可计算两体、三体、四体衰变以及圈衰变过程，包含涉及强相互作用粒子的两体衰变的超对称量子色动力学（SUSY-QCD）修正，同时也可计算MSSM框架内的顶夸克衰变。 Mendeley数据平台CPC库收录的本程序版本 ADVJ_v1_0; SDECAY 版本1.1（2004年9月）; 10.1016/j.cpc.2005.01.012 本程序源自贝尔法斯特女王大学所维护的CPC程序库（1969-2018年）