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Abstract: A Fermiophobic Higgs boson can arise in models with an extended Higgs sector,such as models with scalars in an isospin triplet representation. In a specificmodel with a scalar triplet and spontaneous violation of lepton number inducedby a scalar singlet field, we show that fermiophobia is not a fine-tunedsituation, unlike in Two Higgs Doublet Models. We study distinctive signals offermiophobia which can be probed at the LHC. For the case of a small Higgs massa characteristic signal would be a moderate BH ->\gamma\gamma accompanied bya large BH -> JJ where J is a Majoron, the latter being an invisible decay.For the case of a large Higgs mass there is the possibility of dominant H ->ZZ, WW and suppressed H -> JJ decay modes. In this situation, BH -> ZZ islarger than BH -> WW, which differs from the SM prediction.



Autor: A.G. Akeroyd, Marco A. Díaz, Maximiliano A. Rivera, Diego Romero

Fuente: https://arxiv.org/







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