Computer Physics Communications Program Library

Programs in Physics & Physical Chemistry

PROGRAM SUMMARY

Manuscript Title: SDECAY: a Fortran code for the decays of the supersymmetric particles in the MSSM
Authors: M. Mühlleitner, A. Djouadi, Y. Mambrini
Program title: SDECAY Version 1.1 (September 2004)
Catalogue identifier: ADVJ
Journal reference: Comput. Phys. Commun. 168(2005)46
Programming language: Fortran 77.
Computer: Any with a Fortran77 system.
Operating system: Linux, Unix.
RAM: 7.3MB
Keywords: Supersymmetry, particle decays, loop decays, higher order decays.
PACS: 12.60.Jv.
Classification: 11.1.
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.
Solution method: Two-dimensional numerical integration of the analytic formulae for the double differential decay widths of the three-body decays. The other decay widths are calculated analytically.
Restrictions: In the higher order decay modes the total decay widths of the virtually exchanged (s)particles are not included in their respective propagators. The higher order decays are calculated when the two-body decays are kinematically closed.
Running time: A few seconds on modern personal computers and workstations.