NMHDECAY: A fortran code for the Higgs masses, couplings and decay widths in the NMSSM

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Published 29 March 2005 • Published under licence by IOP Publishing Ltd
, , Citation Ulrich Ellwanger et al JHEP02(2005)066 DOI 10.1088/1126-6708/2005/02/066

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1 Laboratoire de Physique Théorique, Université de Paris XI, Bâtiment 210, F-91405 Orsay Cedex, France

2 Department of Physics, University of California at Davis, Davis, CA 95616, U.S.A.

3 Instituto de Física Corpuscular — CSIC/Universitat de València, Edificio Institutos de Investigación, Apartado de Correos 22085, E-46071 València, Spain

Dates

  1. Received 10 December 2004
  2. Accepted 26 February 2005
  3. Published

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1126-6708/2005/02/066

Abstract

The Fortran code NMHDECAY computes the masses, couplings and decay widths of all Higgs bosons of the NMSSM in terms of its parameters at the electroweak (or Susy breaking) scale: the Yukawa couplings λ and κ, the soft trilinear terms Aλ and Aκ, and tan β and μeff = λ<S>. The computation of the spectrum includes leading two loop terms, electroweak corrections and propagator corrections. The computation of the decay widths is carried out as in HDECAY, but (for the moment) without three body decays. Each point in parameter space is checked against negative Higgs bosons searches at LEP, including unconventional channels relevant for the NMSSM. One version of the program uses generalized SLHA conventions for input and output.

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10.1088/1126-6708/2005/02/066