TY  - EJOUR
AU  - Akdag, Hakan
AU  - Kubis, Bastian
AU  - Wirzba, Andreas
TI  - $C$ and $CP$ violation in effective field theories
VL  - 2212.07794
PB  - arXiv
M1  - FZJ-2022-06033
PY  - 2022
AB  - 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.
KW  - High Energy Physics - Phenomenology (hep-ph) (Other)
KW  - Nuclear Theory (nucl-th) (Other)
KW  - FOS: Physical sciences (Other)
LB  - PUB:(DE-HGF)25
DO  - DOI:10.48550/ARXIV.2212.07794
UR  - https://juser.fz-juelich.de/record/916232
ER  -