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          Institute: MPI für Physik     Collection: YB 2016     Display Documents



ID: 715934.0, MPI für Physik / YB 2016
Momentum-dependent two-loop QCD corrections to the neutral Higgs-boson masses in the MSSM
Authors:Borowka, S.; Hahn, T.; Heinemeyer, S.; Heinrich, G.; Hollik, W.
Date of Publication (YYYY-MM-DD):2014
Title of Journal:European Physical Journal C
Journal Abbrev.:Eur.Phys.J.C
Issue / Number:74
Start Page:2994
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Results are presented for the momentum dependent two-loop contributions of O(alpha_t alpha_s) to the masses and mixing effects in the Higgs sector of the MSSM. They are obtained in the Feynman-diagrammatic approach using a mixed on-shell/DRbar renormalization that can directly be matched onto the higher-order corrections included in the code FeynHiggs. The new two-loop diagrams are evaluated with the program SecDec. The combination of the new momentum dependent two-loop contribution with the existing one- and two-loop corrections in the on-shell/DRbar scheme leads to an improved prediction of the light MSSM Higgs boson mass and a correspondingly reduced theoretical uncertainty. We find that the corresponding shifts in the lightest Higgs-boson mass M_h are below 1 GeV in all scenarios considered, but can extend up to the level of the current experimental uncertainty. The results are included in the code FeynHiggs.
Classification / Thesaurus:Phenomenology of High Energy Physics
Comment of the Author/Creator:27 pages, 12 figures
External Publication Status:published
Document Type:Article
Communicated by:MPI für Physik
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2014-160
URL:http://inspirehep.net/search?p=find+eprint+1404.70...
URL:http://arXiv.org/abs/arxiv:1404.7074
URL:https://publications.mppmu.mpg.de/?action=search&m...
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