The Higgs Boson Sector of the Complex MSSM in the Feynman-diagrammatic approach

Details The Higgs Boson Sector of the Complex MSSM in the Feynman-diagrammatic approach The Higgs Boson Sector of the Complex MSSM in the Feynman-diagrammatic approach

2001-08-06

arxiv.org/abs/hep-ph/0108059v2

Eur.Phys.J.C22:521-534,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, 6 figures. Extended analytical comparison with different approaches. Version to appear in Eur. Phys. Jour. C

Scientific paper

10.1007/s100520100819

In the Minimal Supersymmetric Standard Model with complex parameters (cMSSM) we calculate higher order corrections to the Higgs boson sector in the Feynman-diagrammatic approach using the on-shell renormalization scheme. The application of this approach to the cMSSM, being complementary to existing approaches, is analyzed in detail. Numerical examples for the leading fermionic corrections, including the leading two-loop effects, are presented. Numerical agreement within 10% with other approaches is found for small and moderate mixing in the scalar top sector. The leading fermionic corrections, supplemented by the full logarithmic one-loop and the leading two-loop contributions are implemented into the public Fortran code FeynHiggsFastC.

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