Discriminating between SUSY and Non-SUSY Higgs Sectors through the Ratio $H\to b\bar{b}/H\to {\tau }^{+}{\tau }^{-}$ with a 125 GeV Higgs boson

Abstract

It is still an open question whether the new scalar particle discovered at the LHC with a mass of 125 GeV is the SM Higgs boson or it belongs to models of new physics with an extended Higgs sector, as the MSSM or 2HDM. The ratio of branching fractions $R$ = BR($H\to b\bar{b}$)/BR($H\to {\tau }^{+}{\tau }^{-}$) of Higgs boson decays is a powerful tool in order to distinguish the MSSM Higgs sector from the SM or non-supersymmetric 2HDM. This ratio receives large renormalization-scheme independent radiative corrections in supersymmetric models at large $\tan \beta$, which are insensitive to the SUSY mass scale and absent in the SM or 2HDM. Making use of the current LHC data and the upcoming new results on Higgs couplings to be reported by ATLAS and CMS collaborations and in a future linear collider, we develop a detailed and updated study of this ratio $R$ which improves previous analyses and sets the level of accuracy needed to discriminate between models.

11 pages, 3 figures, 1 table

References in corpus (12)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV
• The Probable Fate of the Standard Model
• Precision Measurements of Higgs Couplings: Implications for New Physics Scales
• Fingerprinting the extended Higgs sector using one-loop corrected Higgs boson couplings and future precision measurements
• Indirect Probes of the MSSM after the Higgs Discovery
• Complementarity Between Non-Standard Higgs Searches and Precision Higgs Measurements in the MSSM
• Complementarity in direct searches for additional Higgs bosons at the LHC and the International Linear Collider
• Status of MSSM Higgs Sector using Global Analysis and Direct Search Bounds, and Future Prospects at the HL-LHC
• Prospects for Higgs coupling measurements in SUSY with radiatively-driven naturalness
• Higgs Coupling Measurements and Direct Searches as Complementary Probes of the pMSSM

Cited by in corpus (3)

• Global fits of GUT-scale SUSY models with GAMBIT
• A global fit of the MSSM with GAMBIT
• Triple Higgs coupling effect on $h^0\to b\bar{b}$ and $h^0\to {\tau }^{+}{\tau }^{-}$ in the 2HDM