CP violation in the effective action of the Standard Model

Abstract

Following a suggestion by Smit, the CP odd terms of the effective action of the Standard Model, obtained by integration of quarks and leptons, are computed to sixth order within a strict covariant derivative expansion approach. No other approximations are made. The final result so derived includes all Standard Model gauge fields and Higgs. Remarkably, at the order considered in this work, all parity violating contributions turn out to be zero. Non vanishing CP violating terms are obtained in the C-odd P-even sector. These are several orders of magnitude larger than perturbative estimates. Various unexpected regularities in the final result are noted.

32 pages, no figures. Section added. To appear in JHEP

References in corpus (5)

• Sizable CP Violation in the Bosonized Standard Model
• The method of covariant symbols in curved space-time
• Effective Action in a General Chiral Model: Next to Leading Order Derivative Expansion in the Worldline Method
• Direct construction of the effective action of chiral gauge fermions in the anomalous sector
• The invariant factor of the chiral determinant

Cited by in corpus (5)

• Computing the temperature dependence of effective CP violation in the standard model
• Leading order one-loop CP and P violating effective action in the Standard Model
• Renormalization of vector fields with mass-like coupling in curved spacetime
• Leptonic CP violating effective action for Dirac and Majorana neutrinos
• Non-minimal non-Abelian quantum vector fields in curved spacetime