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Decay widths of the neutral \(\mathcal{CP}\)-even MSSM Higgs bosons in the Feynman-diagrammatic approach

  • S. Heinemeyer
  • W. Hollik
  • G. Weiglein
Theoretical physics

Abstract.

In the Minimal Supersymmetric Standard Model (MSSM) we incorporate the Higgs-boson propagator corrections, evaluated up to two-loop order, into the prediction of \(\Gamma(h \to f\bar f)\) and \(BR(h \to f \bar f)\) for \(f = b, c, \tau\). The propagator corrections consist of the full one-loop contribution, including the effects of non-vanishing external momentum, and corrections of \(\mathcal{O}(\alpha\alpha_s)\) at the two-loop level. The results are supplemented with the dominant one-loop QED corrections and final state QCD corrections from both gluons and gluinos. The effects of the two-loop propagator corrections and of the one-loop gluino contributions are investigated in detail. Our results are compared with the result obtained within the renormalization group approach. Agreement within 10% is found for most parts of the MSSM parameter space.

Keywords

Higgs Boson Minimal Supersymmetric Standard Model Decay Width External Momentum Renormalization Group Approach 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • S. Heinemeyer
    • 1
  • W. Hollik
    • 2
  • G. Weiglein
    • 3
  1. 1.DESY Theorie, Notkestrasse 85, 22603 Hamburg, Germany DE
  2. 2.Institut für Theoretische Physik, Universität Karlsruhe, 76128 Karlsruhe, Germany DE
  3. 3.CERN, TH Division, 1211 Geneva 23, Switzerland CH

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