Higgs mass from neutrino-messenger mixing
arXiv:1607.03447 · doi:10.1007/JHEP03(2017)028
Abstract
The discovery of the Higgs particle at 125 GeV has put strong constraints on minimal messenger models of gauge mediation, pushing the stop masses into the multi-TeV regime. Extensions of these models with matter-messenger mixing terms have been proposed to generate a large trilinear parameter, , relaxing these constraints. The detailed survey of these models \cite{Byakti:2013ti,Evans:2013kxa} so far considered messenger mixings with only MSSM superfields. In the present work, we extend the survey to MSSM with inverse-seesaw mechanism. The neutrino-sneutrino corrections to the Higgs mass in the inverse seesaw model are not significant in the minimal gauge mediation model, unless one considers messenger-matter interaction terms. We classify all possible models with messenger-matter interactions and perform thorough numerical analysis to find out the promising models. We found that out of the 17 possible models 9 of them can lead to Higgs mass within the observed value without raising the sfermion masses significantly. The successful models have stop masses 1.5 TeV with small or negligible mixing and yet a light CP even Higgs at 125 GeV.
arXiv comment56 pages, 17 figures, 19 tables, Discrepancy of factor 1/2 in effective potential calculations is resolved, analysis strategy and numerical results are modified, few references added, published version
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