%0 Electronic Article
%A Akdag, Hakan
%A Kubis, Bastian
%A Wirzba, Andreas
%T $C$ and $CP$ violation in effective field theories
%V 2212.07794
%I arXiv
%M FZJ-2022-06033
%D 2022
%X The quest for new sources of the simultaneous violation of $C$ and $CP$ symmetry was popular in the 1960s and has since been mostly neglected for more than half a century. In this work we revisit fundamental quark-level operators that break $C$ and $CP$ up to and including mass dimension 8 for flavor-conserving transitions, relying on the complete operator sets of the so-called Standard Model effective field theory and the low-energy effective field theory. With the formalism of chiral perturbation theory, we match these quark operators to light-meson physics, derive $C$- and $CP$-odd Lagrangians for several processes in the $η$, $η'$, and pion sectors, and furthermore, as a proof of principle, give estimates for the respective observables in explicit dependence of the underlying high-energy scale for new physics.
%K High Energy Physics - Phenomenology (hep-ph) (Other)
%K Nuclear Theory (nucl-th) (Other)
%K FOS: Physical sciences (Other)
%F PUB:(DE-HGF)25
%9 Preprint
%R 10.48550/ARXIV.2212.07794
%U https://juser.fz-juelich.de/record/916232