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ID: 544947.0, MPI für Physik / MPI für Physik
The Higgs Boson Masses and Mixings of the Complex MSSM in the Feynman-Diagrammatic Approach
Authors:Frank, M.; Hahn, T.; Heinemeyer, S.; Hollik, W.; Rzehak, H.; Weiglein, G.
Date of Publication (YYYY-MM-DD):2007
Title of Journal:Journal of High Energy Physics
Journal Abbrev.:JHEP
Issue / Number:0702
Start Page:047
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:New results for the complete one-loop contributions to the masses and mixing effects in the Higgs sector are obtained for the MSSM with complex parameters using the Feynman-diagrammatic approach. The full dependence on all relevant complex phases is taken into account, and all the imaginary parts appearing in the calculation are treated in a consistent way. The renormalization is discussed in detail, and a hybrid on-shell/DRbar scheme is proposed. We also derive the wave function normalization factors needed in processes with external Higgs bosons and discuss effective couplings incorporating leading higher-order effects. The complete one-loop corrections, supplemented by the available two-loop corrections in the Feynman-diagrammatic approach for the MSSM with real parameters and a resummation of the leading (s)bottom corrections for complex parameters, are implemented into the public Fortran code FeynHiggs2.5. In our numerical analysis the full results for the Higgs-boson masses and couplings are compared with various approximations, and CP-violating effects in the mixing of the heavy Higgs bosons are analyzed in detail. We find sizable deviations in comparison with the approximations often made in the literature.
Classification / Thesaurus:Phenomenology of High Energy Physics
Comment of the Author/Creator:56 pages, 12 figures. Was lange waehrt, wird endlich gut!
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
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