Finetuning in EW Symmetry Breaking

Details Finetuning in EW Symmetry Breaking Finetuning in EW Symmetry Breaking

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..805..240e&link_type=abstract

PARTICLES, STRINGS, AND COSMOLOGY: 11th International Symposium on Particles, Strings, and Cosmology; PASCOS 2005. AIP Conferen

Physics

Spontaneous Breaking Of Gauge Symmetries, Spontaneous And Radiative Symmetry Breaking, Unified Theories And Models Of Strong And Electroweak Interactions, Supersymmetric Models, Extensions Of Electroweak Higgs Sector

Scientific paper

After revisiting the hierarchy problem of the Standard Model and its implications for the scale of New Physics, I consider the finetuning problem in two main scenarios beyond the Standard Model: Supersymmetry (both in the Minimal Supersymmetric Standard Model and alternative models) and Little Higgs models. The main conclusions are that New Physics should appear on the reach of the LHC; that some supersymmetric models can solve the hierarchy problem with acceptable residual finetuning and, finally, that Little Higgs models generically suffer from large tunings, many times hidden.

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