https://doi.org/10.1140/epjc/s10052-020-08637-w
Regular Article - Theoretical Physics
The light MSSM Higgs boson mass for large $$\tan \beta $$ and complex input parameters
Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607, Hamburg, Germany
* e-mail: henning.bahl@desy.de
Received:
30
September
2020
Accepted:
2
November
2020
Published online:
18
November
2020
We discuss various improvements of the prediction for the light MSSM Higgs boson mass in the hybrid framework of the public code $$\texttt {FeynHiggs}$$, which combines fixed-order and effective field theory results. First, we discuss the resummation of logarithmic contributions proportional to the bottom-Yukawa coupling including two-loop $$\Delta _b$$ resummation. For large $$\tan \beta $$, these improvements can lead to large upward shifts of the Higgs mass compared to the existing fixed-order calculations. Second, we improve the implemented EFT calculation by fully taking into account the effect of $$\mathcal{CP}$$-violating phases. As a third improvement, we discuss the inclusion of partial $$\hbox {N}^3$$LL resummation. The presented improvements will be implemented into $$\texttt {FeynHiggs}$$.
© The Author(s), 2020
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