Speaker
Matthew Baldwin
Description
Parity symmetry, with an extended gauge group $SU(3)_C\times SU(2)_L \times SU(2)_R\times U(1)_X$, can solve the strong CP problem. In particular, models where $SU(2)_R\times U(1)_X$ is broken by the Parity partner of the SM Higgs solves the strong CP problem without introducing extra symmetry. We discuss the possibility of accidentally stable dark matter in this framework and show that $SU(2)_L \times SU(2)_R$ bi-triplet fermions can be accidentally stable. We compute the relic abundance of the bi-triplet fermion and derive constraints on the parameter space from direct and indirect detection experiments.
Authors
Isaac Wang
Keisuke Harigaya
Matthew Baldwin