TH BSM Forum

Natural Scherk-Schwarz theories of the weak scale

by Isabel Garcia Garcia (Oxford)

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

4/2-011 - TH common room

CERN

15
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Description
Natural supersymmetric theories of the weak scale are under growing pressure given present LHC constraints, and raise the question of whether untuned SUSY solutions to the hierarchy problem are possible. In this talk, we explore a class of SUSY theories of the weak scale arising from 5 dimensions and in which SUSY is broken by the Scherk-Schwarz mechanism. We pedagogically explain how Scherk-Schwarz elegantly solves the traditional problems of 4-dimensional SUSY theories (based on the MSSM and its many variants) that usually result in a dismal level of fine-tuning. The minimal Scherk-Schwarz set up possesses novel and striking phenomenology, which we briefly outline. We show that achieving the observed physical Higgs mass motivates extra structure that does not significantly affect the level of tuning (always better than ~ 10%).