Eur. Phys. J. C 22, 521-534 (2001)
DOI: 10.1007/s100520100819
The Higgs boson sector of the complex MSSM in the Feynman-diagrammatic approach
S. HeinemeyerHET, Brookhaven Natl. Lab., Upton, NY 11973, USA
(Received: 6 August 2001 / Revised version: 8 October 2001 / Published online: 21 November 2001 - © Springer-Verlag / Società Italiana di Fisica 2001 )
Abstract
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.
© Società Italiana di Fisica, Springer-Verlag 2001
