We show that, in the present inclusive searches for the Higgs boson at the LHC, a fermiophobic Higgs mimics the standard-model-like Higgs if its mass is around 125 GeV. For that mass the order-of-magnitude reduction of fermiophobic Higgs production cross sections is compensated by a corresponding increase in the Higgs branching fraction into gamma gamma, while the WW*, ZZ*, Z gamma signal yields are predicted to be somewhat smaller. The excess seen in the ATLAS and CMS fermiophobic Higgs boson searches in the gamma gamma channel, including the exclusive vector-boson-fusion analysis, could point to a fermiophobic rather than a standard-model Higgs boson, lithe Higgs boson will turn out to be fermiophobic, many of our present ideas of new physics should be revised. (C) 2012 Elsevier B.V. All rights reserved.
Has a fermiophobic Higgs boson been detected at the LHC?
GABRIELLI, Emidio;
2012-01-01
Abstract
We show that, in the present inclusive searches for the Higgs boson at the LHC, a fermiophobic Higgs mimics the standard-model-like Higgs if its mass is around 125 GeV. For that mass the order-of-magnitude reduction of fermiophobic Higgs production cross sections is compensated by a corresponding increase in the Higgs branching fraction into gamma gamma, while the WW*, ZZ*, Z gamma signal yields are predicted to be somewhat smaller. The excess seen in the ATLAS and CMS fermiophobic Higgs boson searches in the gamma gamma channel, including the exclusive vector-boson-fusion analysis, could point to a fermiophobic rather than a standard-model Higgs boson, lithe Higgs boson will turn out to be fermiophobic, many of our present ideas of new physics should be revised. (C) 2012 Elsevier B.V. All rights reserved.Pubblicazioni consigliate
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