Littlest Higgs Model with T Parity: Phenomenology

Speaker: Maxim Perelstein, Cornell University

When: December 4, 2006 (Mon), 12:30PM to 01:30PM (add to my calendar)

This event is part of the HET Seminar Series.

Little Higgs models provide an interesting candidate for physics at the TeV scale. These models contain a light Higgs boson and remain perturbative until a scale of order 10 TeV, as preferred by precision electroweak data. Electroweak symmetry breaking is triggered by radiative effects, dominated by the top loop contribution to the Higgs potential. The Littlest Higgs model is a simple and economical implementation of this idea. While the original Littlest Higgs model is disfavored by precision electroweak data, the version of the model which incorporates T-parity (analogous to the R-parity of the MSSM) provides an acceptable fit to data without fine-tuning. This model contains a rich spectrum of new particles at the TeV scale, which are expected to be accessible at the LHC.

It also generically contains an attractive dark matter candidate, the T-odd partner of the familiar photon. In this talk, I will review the model and discuss the present experimental constraints from precision electroweak fits and direct searches at the Tevatron, along with potential signatures at the LHC, the ILC and in dark matter searches.