Strong CP violation in spin-1/2 singly charmed baryons

Abstract

We report on the calculation of the CP-violating form factor $F_3$ and the corresponding electric dipole moment for charmed baryons in the spin-1/2 sector generated by the QCD $\theta$-term. We work in the framework of covariant baryon chiral perturbation theory within the extended-on-mass-shell renormalization scheme up to next-to-leading order in the chiral expansion.

13 pages, 2 figures, extended introduction and discussion, version accepted for publication in JHEP