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

AuthorsBarenboim, Gabriela ; Bosch Serrano, Cristian ; López Ibáñez, María Luisa ; Vives, Óscar
KeywordsHiggs Physics
Beyond Standard Model
Supersymmetric Standard Model
Issue Date7-Nov-2013
CitationJournal of High Energy Physics 11 (11): 051 - 39 (2013)
AbstractWe prove that the present experimental constraints are already enough to rule out the possibility of the similar to 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, tau tau production through Higgs and BR(B -> X-s gamma) are enough to preclude the possibility of H-2 being the observed Higgs with m(H) similar or equal to 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 gamma gamma production cross section recently found at CMS that could correspond to a second Higgs resonance at m(H) similar or equal to 136 GeV.
Publisher version (URL)http://dx.doi.org/10.1007/JHEP11(2013)051
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