NMSDECAY: A Fortran code for supersymmetric particle decays in the Next-to-Minimal Supersymmetric Standard Model

The code NMSDECAY allows to compute widths and branching ratios of sparticle decays in the Next-to-Minimal Supersymmetric Standard Model. It is based on a generalization of SDECAY, to include the extended Higgs and neutralino sectors of the NMSSM. Slepton 3-body decays, possibly relevant in the case of a singlino-like lightest supersymmetric particle, have been added. NMSDECAY will be part of the NMSSMTools package, which computes Higgs, sparticle masses and Higgs decays in the NMSSM.Program summaryProgram title: NMSDECAYCatalogue identifier: AELC_v1_0Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AELC_v1_0.htmlProgram obtainable from: CPC Program Library, Queenʼs University, Belfast, N. IrelandLicensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.htmlNo. of lines in distributed program, including test data, etc.: 188 177No. of bytes in distributed program, including test data, etc.: 1 896 478Distribution format: tar.gzProgramming language: FORTRAN77Computer: All supporting g77, gfortran, ifortOperating system: All supporting g77, gfortran, ifortClassification: 11.1External routines: Routines in the NMSSMTools package: At least one of the routines in the directory main (e.g. nmhdecay.f), all routines in the directory sources. (All software is included in the distribution package.)Nature of problem: Calculation of all decay widths and decay branching fractions of all particles in the Next-to-Minimal Supersymmetric Standard Model.Solution method: Suitable generalization of the code SDECAY [1] including the extended Higgs and neutralino sector of the Next-to-Minimal Supersymmetric Standard Model, and slepton 3-body decays.Additional comments: NMSDECAY is interfaced with NMSSMTools, available on the web page http://www.th.u-psud.fr/NMHDECAY/nmssmtools.html.Running time: On an Intel Core i7 with 2.8 GHZ: about 2 seconds per point in parameter space, if all flags flagqcd, flagmulti and flagloop are switched on.References:[1]M. Muhlleitner, A. Djouadi, Y. Mambrini, Comput. Phys. Commun. 168 (2005) 46, arXiv:hep-ph/0311167.