22-29 July 2015
Europe/Vienna timezone

Discriminating between SUSY and Non-SUSY Higgs Sectors through the Ratio $H \to b \bar b / H \to \tau \bar \tau$

Jul 23, 2015, 5:30 PM
Großer Festsaal

Großer Festsaal

talk Higgs and New Physics Higgs and New Physics


Ernesto Arganda (Universidad de Zaragoza)


The ratio of branching ratios R = BR($H \to b \bar b$)/BR($H \to \tau \bar \tau$) of Higgs boson decays is a powerful tool in order to distinguish the MSSM Higgs sector from non-supersymmetric two Higgs doublet models (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 Standard Model 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, we develop a detailed and updated study of this ratio R which improves previous analyses and sets lower levels of accuracy to discriminate between models.

Primary authors

Ernesto Arganda (Universidad de Zaragoza) Dr Siannah Penaranda Rivas (Universidad de Zaragoza) Wolfgang Hollik (Max Planck Gesellschaft)

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