Natural Warped Electroweak Breaking without Custodial Symmetry

by Gero Gersdorff (Ecole Polytechnique)

Thursday 21 Apr 2011, 14:00 → 15:00 Europe/Zurich

4/2-011 - TH common room (CERN)

Five-dimensional warped compactifications (Randall Sundrum models) offer an attractive solution to the hierarchy problem. In order to satisfy Electroweak precision tests (EWPT), one commonly takes the approach of introducing an SU(2)_R gauge symmetry, thus realizing custodial symmetry on the Kaluza Klein (KK) resonances. In this talk I report on a recent model where this paradigm is abandoned, leading to simpler and more minimal extensions of the SM while satisfying all EWPT, with KK masses as low as 1 TeV. Naturalness of Electroweak breaking is used as a guiding principle throughout, and I will show that both light and heavy Higgs bosons can be achieved.

Slides Gersdorff.pdf