Speaker
Prof.
Benjamin Grinstein
(University of California San Diego and CERN)
Description
In little higgs models a collective symmetry prevents the higgs from acquiring a quadratically divergent mass at one loop. By considering first the littlest higgs model we show that this requires a fine tuning: the couplings in the model introduced to give the top quark a mass do not naturally respect the collective symmetry. We show the problem is generic: it arises from the fact that the would be collective symmetry of any one top quark mass term is broken by gauge interactions.
Primary author
Prof.
Benjamin Grinstein
(University of California San Diego and CERN)
Co-authors
Mr
Patipan Uttayarat
(University of California San Diego)
Dr
Randall Kelley
(Harvard Univesiry)
