Viability of minimal left-right models with discrete symmetries

Understand

We provide a systematic study of minimal left-right models that are invariant under $P$, $C$, and/or $CP$ transformations.

• Due to the high amount of symmetry such models are quite predictive in the amount and pattern of $CP$ violation they can produce or accommodate at lower energies.
• Using current experimental constraints some of the models can already be excluded.
• For this purpose we provide an overview of the experimental constraints on the different left-right symmetric models, considering bounds from colliders, meson-mixing and low-energy observables, such as beta decay and electric dipole moments.