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Eviction of a 125 GeV “heavy”-Higgs from the MSSM

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Abstract

We prove that the present experimental constraints are already enough to rule out the possibility of the ∼ 125 GeV Higgs found at LHC being the second lightest Higgs in a general MSSM context, even with explicit CP violation in the Higgs potential. Contrary to previous studies, we are able to eliminate this possibility analytically, using simple expressions for a relatively small number of observables. We show that the present LHC constraints on the diphoton signal strength, τ τ production through Higgs and BR(B → X sγ) are enough to preclude the possibility of H 2 being the observed Higgs with m H ⋍ 125 GeV within an MSSM context, without leaving room for finely tuned cancellations. As a by-product, we also comment on the difficulties of an MSSM interpretation of the excess in the γγ production cross section recently found at CMS that could correspond to a second Higgs resonance at m H ⋍ 136 GeV.

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  1. Departament de Física Teòrica and IFIC, Universitat de València-CSIC, E-46100, Burjassot, Spain

    G. Barenboim, C. Bosch, M.L. López-Ibáñez & O. Vives

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  1. G. Barenboim
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  2. C. Bosch
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  3. M.L. López-Ibáñez
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Barenboim, G., Bosch, C., López-Ibáñez, M. et al. Eviction of a 125 GeV “heavy”-Higgs from the MSSM. J. High Energ. Phys. 2013, 51 (2013). https://doi.org/10.1007/JHEP11(2013)051

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