Neutrino masses and Higgs decays in littlest Higgs models

by Dr Raghavendra Srikanth Hundi (UHM)

Friday Nov 9, 2007, 3:00 PM → 4:30 PM Pacific/Honolulu

WAT 417 Library (University of Hawai'i, Manoa)

Little Higgs models are possible candidates to describe new physics at the TeV scale. We first introduce these models and discuss why these are considered as promising extensions of the Standard Model. After this, we turn to some phenomenological issues that we have examined in the littlest Higgs model with and without T-parity. In the littlest Higgs model without T-parity, we have incorporated mass terms for neutrinos which can explain the smallness of neutrino masses. We have studied decays of triplet Higgs which serve to test this neutrino mass model at colliders. On the other hand, in the littlest Higgs model with T-parity, the usual doublet Higgs boson can decay invisibly into a pair of heavy photons. We have computed the branching ratio of this decay and found that it can be as large as 90%.
Organizer: J.G. Learned