July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

Little hierarchy in the minimally specified MSSM

Jul 31, 2017, 2:30 PM
1 West (Fermi National Accelerator Laboratory)

1 West

Fermi National Accelerator Laboratory

Presentation Beyond Standard Model Beyond Standard Model


Prof. Radovan Dermisek (Indiana University)


We study constrained versions of the minimal supersymmetric model and investigate the hierarchy between the electroweak scale and the scale of superpartners that can be achieved without relying on specifying model parameters by more than one digit. This approach automatically avoids scenarios in which a large hierarchy is obtained by special choices of parameters and yet keeps scenarios that would be otherwise disfavored by various sensitivity measures. We consider models with universal gaugino and scalar masses, models with non-universal Higgs masses or non-universal gaugino masses and focus on scenarios in which all the model parameters are either of the same order or zero at the grand unification scale. We find that the maximal hierarchy between the electroweak scale and stop masses, requiring that model parameters are not specified beyond one digit, ranges from a factor of 30 for the CMSSM up to 300 for models with non-universal Higgs or gaugino masses.

Primary author

Prof. Radovan Dermisek (Indiana University)

Presentation materials