Dimension-5 CP-odd operators: QCD mixing and renormalization
High Energy Physics - Phenomenology
2016-08-02 v2 High Energy Physics - Lattice
Nuclear Theory
Abstract
We study the off-shell mixing and renormalization of flavor-diagonal dimension-5 T- and P-odd operators involving quarks, gluons, and photons, including quark electric dipole and chromo-electric dipole operators. We present the renormalization matrix to one-loop in the scheme. We also provide a definition of the quark chromo-electric dipole operator in a regularization-independent momentum-subtraction scheme suitable for non-perturbative lattice calculations and present the matching coefficients with the scheme to one-loop in perturbation theory, using both the naive dimensional regularization and 't Hooft-Veltman prescriptions for .
Keywords
Cite
@article{arxiv.1502.07325,
title = {Dimension-5 CP-odd operators: QCD mixing and renormalization},
author = {T. Bhattacharya and V. Cirigliano and R. Gupta and E. Mereghetti and B. Yoon},
journal= {arXiv preprint arXiv:1502.07325},
year = {2016}
}
Comments
52 pages, 5 figures, 6 tables. Added section with comparison to DeltaS=1 chromo-magnetic operator