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The Higgs-photon-Z boson coupling revisited

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Abstract

We analyze the coupling of CP-even and CP-odd Higgs bosons to a photon and a Z boson in extensions, of the Standard Model. In particular, we study in detail the effect of charged Higgs bosons in two-Higgs doublet models;. and the contribution of SUSY particle loops in the minimal supersymmetric extension of the Standard Model: The Higgs-γZ coupling can be measured in the decayZ → γ+Higgs ate + e − colliders running on theZ resonance, or in the reverse process Higgs →Zγ with the Higgs boson produced at LHC. We show that a measurement of this coupling with a precision at the percent level, which could be the case at futuree + e − colliders, would allow to distinguish between the lightest SUSY and standard Higgs bosons in large areas of the parameter space.

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Authors and Affiliations

  1. Physique Mathématique et Théorique, UPRES-A 5032, Université de Montpellier II, F-34095, Montpellier Cedex 5, France

    A. Djouadi

  2. Institut für Theoretische Physik, Universität Karlsruhe, D-76128, Karlsruhe, Germany

    V. Driesen, W. Hollik & A. Kraft

Authors
  1. A. Djouadi
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  2. V. Driesen
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  3. W. Hollik
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  4. A. Kraft
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Djouadi, A., Driesen, V., Hollik, W. et al. The Higgs-photon-Z boson coupling revisited. Eur. Phys. J. C 1, 163–175 (1998). https://doi.org/10.1007/BF01245806

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