Abstract
We present an improved calculation of the light CP-even Higgs boson pole mass in the MSSM based on the FlexibleEFTHiggs hybrid method. The calculation resums large logarithms to all orders and includes power-suppressed terms at fixed order. It uses state-of-the-art 2- and 3-loop matching of the quartic Higgs coupling and renormalization group running up to 4-loop, resulting in a resummation of large logarithmic corrections up to N3LL level. A conceptually novel ingredient is the expansion of the matching conditions in terms of high-scale MSSM parameters instead of SM parameters. In this way leading QCD-enhanced terms in the stop-mixing parameter are effectively resummed, leading to an improved numerical convergence of the perturbative expansion. Furthermore, the avoidance of double counting of loop corrections is more transparent than in other approaches and more independent of the high-scale model. We present numerical results and a detailed discussion of theoretical uncertainties for standard benchmark scenarios.
Highlights
Since the discovery of the Higgs boson [1, 2], the Higgs boson mass Mh = (125.10 ± 0.14) GeV [3, 4] has become a high-precision observable [5], which represents another useful tool to search for physics beyond the Standard Model (SM) and constrain the large zoo of proposed SM extensions, such as supersymmetric (SUSY) models
We present an improved calculation of the light CP-even Higgs boson pole mass in the Minimal Supersymmetric Standard Model (MSSM) based on the FlexibleEFTHiggs hybrid method
In this paper we present an extension of the FlexibleEFTHiggs hybrid approach with a matching of the quartic Higgs coupling λbeyond 1-loop level and apply it to perform a state-of-the-art hybrid calculation of the light CP-even Higgs boson mass in the real MSSM
Summary
This so-called FlexibleEFTHiggs approach is an EFT calculation in which the matching condition is suitably modified such that terms suppressed by powers of v2/MS2 are included in the quartic Higgs coupling One advantage of this method is the structural simplicity. In this paper we present an extension of the FlexibleEFTHiggs hybrid approach with a matching of the quartic Higgs coupling λbeyond 1-loop level (next-to-leading order, NLO) and apply it to perform a state-of-the-art hybrid calculation of the light CP-even Higgs boson mass in the real MSSM.
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