NMHDECAY 2.1: An updated program for sparticle masses, Higgs masses, couplings and decay widths in the NMSSM

Ulrich Ellwanger (1) , Cyril Hugonie (2)

1 LPT - Laboratoire de Physique Théorique d'Orsay [Orsay]
2 LPTA - Laboratoire de Physique Théorique et Astroparticules

We describe the improved properties of the NMHDECAY program, that is designed to compute Higgs and sparticle masses and Higgs decay widths in the NMSSM. In the version 2.0, Higgs decays into squarks and sleptons are included, accompanied by a calculation of the squark, gluino and slepton spectrum and tests against constraints from LEP and the Tevatron. Further radiative corrections are included in the Higgs mass calculation. A link to MicrOMEGAs allows to compute the dark matter relic density, and a rough (lowest order) calculation of BR(b→sγ) is performed. Finally, version 2.1 allows to integrate the RGEs for the soft terms up to the GUT scale.

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

Ulrich Ellwanger, Cyril Hugonie. NMHDECAY 2.1: An updated program for sparticle masses, Higgs masses, couplings and decay widths in the NMSSM. Computer Physics Communications, 2006, 175 (4), pp.290-303. ⟨10.1016/j.cpc.2006.04.004⟩. ⟨hal-00314140⟩