English

The light MSSM Higgs boson mass for large $\tan\beta$ and complex input parameters

High Energy Physics - Phenomenology 2020-12-02 v2

Abstract

We discuss various improvements of the prediction for the light MSSM Higgs boson mass in the hybrid framework of the public code 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 Δb\Delta_b resummation. For large tanβ\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 CP\mathcal{CP}-violating phases. As a third improvement, we discuss the inclusion of partial N3^3LL resummation. The presented improvements will be implemented into FeynHiggs.

Keywords

Cite

@article{arxiv.2009.07572,
  title  = {The light MSSM Higgs boson mass for large $\tan\beta$ and complex input parameters},
  author = {Henning Bahl and Ivan Sobolev and Georg Weiglein},
  journal= {arXiv preprint arXiv:2009.07572},
  year   = {2020}
}

Comments

53 pages, 9 figures, 12 ancillary files; v2: matches version published in EPJC;

R2 v1 2026-06-23T18:34:51.494Z