Higgs-Radion Mixing with Enhanced Di-Photon Signal

Details Higgs-Radion Mixing with Enhanced Di-Photon Signal Higgs-Radion Mixing with Enhanced Di-Photon Signal

2008-09-30

arxiv.org/abs/0809.5245v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 6 figures

Scientific paper

10.1103/PhysRevD.79.015009

In the context of warped scenarios in which Standard Model (SM) fields are allowed to propagate in the bulk, we revisit the possible mixing between the IR localized Higgs field and the Radion graviscalar. The phenomenology of the resulting mostly-Higgs field does not suffer important deviations with respect to the case in which all the SM is localized in the IR brane (original Higgs-Radion mixing scenario). On the contrary, the phenomenology of the mostly-Radion field can present important differences with respect to the original scenario. At the LHC, the most striking effect is now the possibility of sizeable Radion decays into photons in a mass range well beyond the ZZ and WW thresholds, not due to dramatically enhanced couplings to photons but to suppressed couplings to massive fields.

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