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Precision calculations in the MSSM Higgs-boson sector with FeynHiggs 2.14

MPS-Authors

Bahl,  Henning
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hahn,  Thomas
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Heinemeyer,  Sven
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hollik,  Wolfgang
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Paßehr,  Sebastian
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Rzehak,  Heidi
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Weiglein,  Georg
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Citation

Bahl, H., Hahn, T., Heinemeyer, S., Hollik, W., Paßehr, S., Rzehak, H., et al. (2020). Precision calculations in the MSSM Higgs-boson sector with FeynHiggs 2.14. Computer Physics Communications, 249, 107099. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2018-229.


Cite as: https://hdl.handle.net/21.11116/0000-0008-1BB3-0
Abstract
We present an overview of the status and recent developments of FeynHiggs (current version: 2.14.3) since version 2.12.2. The main purpose of FeynHiggs is the calculation of the Higgs-boson masses and other physical observables in the MSSM. For a precise prediction of the Higgs-boson masses for low and high SUSY scales, state-of-the-art fixed-order and effective-field-theory calculations are combined. We first discuss improvements of the fixed-order calculation, namely an optional $\overline{\text{DR}}$ renormalization of the stop sector and a renormalization of the Higgs sector ensuring the chosen input mass to be equivalent with the corresponding physical mass. Second, we describe improvements of the EFT calculation, i.e. an implementation of non-degenerate threshold corrections as well as an interpolation for complex parameters. Lastly, we highlight some improvements of the code structure easing future extensions of FeynHiggs to models beyond the MSSM.