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Focus Points of Bayesian Naturalness in MSSM and NMSSM

Not scheduled
15m
Hotel Catalonia Plaza (Barcelona)

Hotel Catalonia Plaza

Barcelona

Hotel Catalonia Plaza, Plaça Espanya, 6-8
Posters (last call deadline 30th June)

Speaker

Doyoun Kim (IBS-CTPU)

Description

The Higgs boson discovery stirred interest in next-to-minimal supersymmetric models, due to the apparent fine-tuning required to accommodate it in minimal theories. To assess their naturalness, we compare fine-tuning in a ℤ3 conserving semi-constrained Next-to-Minimal Supersymmetric Standard Model (NMSSM) to the constrained MSSM (CMSSM). We contrast popular fine-tuning measures with naturalness priors, which automatically appear in statistical measures of the plausibility that a given model reproduces the weak scale. Our comparison shows that naturalness priors provide valuable insight into the hierarchy problem and rigorously ground naturalness in Bayesian statistics. For the CMSSM and semi-constrained NMSSM we demonstrate qualitative agreement between naturalness priors and popular fine tuning measures. Thus, we give a clear plausibility argument that favours relatively light superpartners.

Parallel Session Supersymmetry: Models, Phenomenology and Experimental Results

Primary author

Doyoun Kim (IBS-CTPU)

Co-authors

Dr Andrew Fowlie (Monash University) Dr Benjamin Farmer (Oskar Klein Centre) Csaba Balazs (Monash University) Dr Dylan Harries (Charles University Prague) Peter Athron

Presentation materials

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