Talk (non-conference) (Invited)

PUBDB-2016-01169

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Avoiding Death by Vacuum Decay: cutting on the MSSM parameter space

Hollik, W. (Corresponding author)DESY*

2016

Abstract: After pinning down the parameters in the Standard Model to their currentvalues, it looks like the electroweak vacuum resides in a metastable state.Supersymmetry by the same mechanism as it stabilizes the Higgs massstabilizes the effective potential. However, supersymmetric theories sufferfrom possible qualitatively new instabilities. Constraints on suchnon-standard vacua help to constrain the available parameter space of themodel. A one-loop access to the effective potential in the MSSM gives newinsights on such constraints. Motivated by an instability in the one-looppotential, we derive bounds on the parameters similar to existing ones.Surprisingly, non-standard vacua show up in a direction that are missed inthe traditional approach.

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2016

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Database coverage:

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