SFOLD — A program package for calculating two-body sfermion decays at full one-loop level in the MSSM

Abstract

SFOLD (Sfermion Full One-Loop Decays) is a Fortran program package for calculating all sfermion two-body decay widths and the corresponding branching ratios at full one-loop level within the MSSM. The package adopts the SUSY Parameter Analysis convention and supports the SUSY Les Houches Accord input and output format. With the SFOLD package we found non-negligible electroweak corrections in bosonic decays of b̃,t̃ and τ̃. Program summaryProgram title: SFOLDCatalogue identifier: AEMZ_v1_0Program summary URL: http://cpc.cs.qub.ac.uk/summaries/AEMZ_v1_0.htmlProgram obtainable from: CPC Program Library, Queen’s University, Belfast, N. IrelandLicensing provisions: GNU General Public License, version 3No. of lines in distributed program, including test data, etc.: 263346No. of bytes in distributed program, including test data, etc.: 1481697Distribution format: tar.gzProgramming language: Fortran 77.Computer: Workstation, PC.Operating system: Linux.RAM: approx. 500 MbytesClassification: 11.1.External routines: LoopTools 2.6 (http://www.feynarts.de/looptools/), SLHALib 2.2 (http://www.feynarts.de/slha/)Nature of problem:If the MSSM is realized in nature, LHC will produce supersymmetric particles copiously. The best environment for a precise determination of the model parameters would be a high energy e+e− linear collider. Experimental accuracies are expected at the per-cent down to the per-mill level. These must be matched from the theoretical side. Therefore loop calculations are mandatory.Solution method:This program package calculates all sfermion two-body decay widths and the corresponding branching ratios at full one-loop level within the MSSM. The renormalization is done in the DR¯ scheme following the SUSY Parameter Analysis convention. The program supports the SUSY Les Houches Accord input and output format.Running time:The test provided just takes a few seconds to run.