Gravitational Waves from Mini-Split SUSY

Understand

We show that color-breaking vacua may develop at high temperature in the Mini-Split Supersymmetry (SUSY) scenario.

• This can lead to a nontrivial cosmological history of the Universe, including strong first order phase transitions and domain wall production.
• Given the typical PeV energy scale associated with Mini-Split SUSY models, a stochastic gravitational wave background at frequencies around 1 kHz is expected.
• We study the potential for detection of such a signal in future gravitational wave experiments.