Ohio State Department of Physics

HEP/Astro Seminar - Wednesday, 29 January 2003

Little Higgs and Electroweak Symmetry Breaking

Dr. Jay Wacker (Berkeley)


Little Higgs models have recently emerged as new candidates for physics at the TeV scale. The effects of TeV scale to precision electroweak observables have been calculated for "the littlest Higgs" and they place various limits on regions of parameter space in this model. In this talk I present a new little Higgs model that has no significant constraints from precision electroweak observables in order to show that the little Higgs mechanism does not need to be in tension with current measurements. This model has an exact custodial SU(2) symmetry when the hypercharge gauge coupling vanishes. While this alone does not completely ameliorate all contributions to precision electroweak observables, it allows for a simple limit where the contributions are parametrically small.

15:30, Smith Lab 4079

Last updated 27 January 2003, Matthew Wingate

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