13–17 Aug 2013
University of California, Santa Cruz
US/Pacific timezone

Charge and Colour Breaking Constraints in the Minimal Supersymmetric Standard Model

15 Aug 2013, 17:00
20m
Classroom Unit 2 (University of California, Santa Cruz)

Classroom Unit 2

University of California, Santa Cruz

oral presentation Physics Beyond the Standard Model Physics Beyond the Standard Model

Speaker

Nikita Blinov (TRIUMF/University of British Columbia)

Description

The scalar potential of the Minimal Supersymmetric Standard Model (MSSM) admits the existence of vacua with non-vanishing expectation values of electrically and colour charged fields. If such minimima are deep enough, the physical electroweak vacuum is rendered unstable by quantum tunneling. By comparing the lifetime of the electroweak vacuum with the age of the universe, the MSSM parameter space can be constrained. Furthermore, the appearance of charge and colour breaking minima associated with the stop sector is strongly correlated with the Higgs mass, which has been recently measured at the Large Hadron Collider. We carry out a metastability analysis in the stop sector of the MSSM, improving upon previous results. We exclude parts of the parameter space allowed by the Higgs mass measurement.
APS member ID 61111722

Primary authors

David Morrissey (Harvard University) Nikita Blinov (TRIUMF/University of British Columbia)

Presentation materials