NMHDECAY: A Fortran Code for the Higgs Masses, Couplings and Decay Widths in the NMSSM

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 (SUSY breaking) scale: the Yukawa couplings lambda and kappa, the soft trilinear terms A_lambda and A_kappa, and tan(beta) and mu_eff = lambda*<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.

Typos corrected, references added, radiative corrections written out explicitely in new appendix C

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• Complementarity of the CERN Large Hadron Collider and the $e^{+}{e}^{-}$ International Linear Collider
• PandaX limits on light dark matter with light mediator in the singlet extension of MSSM
• Status of ${\mathbb{Z}}_3$-NMSSM featuring a light bino-dominated LSP and a light singlet-like scalar under the LZ Experiment
• NMSSM Light Decoupled Higgs Singlet at CEPC
• Gravitino dark matter in the constrained next-to-minimal supersymmetric standard model with neutralino next-to-lightest superpartner
• Benchmark Planes for Higgs-to-Higgs Decays in the NMSSM
• Di-Higgs Production and Trilinear Higgs Self-Coupling in the scNMSSM: Qualitative Implications for the Electroweak Phase Transition at large λ and Low tan\b{eta}
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• Multi-scalar signature of self-interacting dark matter in the NMSSM and beyond
• Shedding Light on Dark Matter at the LHC with Machine Learning
• Exploring Heavy Higgs Bosons at a 100 TeV Hadron Collider within the Semi-Constrained NMSSM