Stealth dark matter and gravitational waves

19 Jun 2019, 10:00
20m
Shimao 3B

Shimao 3B

Parallel Physics Beyond the Standard Model Physics Beyond the Standard Model

Speaker

David Schaich

Description

I will present ongoing investigations into the finite-temperature dynamics of stealth dark matter, which adds to the standard model a new SU(4) gauge sector with four moderately heavy fundamental fermions. The lightest scalar SU(4) `baryon' is the composite dark matter candidate. With the Lattice Strong Dynamics Collaboration, I am building on our past studies of direct detection and collider searches for stealth dark matter by analyzing the early-universe SU(4) confinement transition, which produces a stochastic background of gravitational waves if it is first order. I will present the parameter space in which we observe such a first-order transition, and discuss the quantities we are analyzing in order to predict the resulting gravitational wave spectrum.

Primary author

David Schaich

Presentation Materials