English

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 MSˉ\bar{\rm MS} 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 MSˉ\bar{\rm MS} scheme to one-loop in perturbation theory, using both the naive dimensional regularization and 't Hooft-Veltman prescriptions for γ5\gamma_5.

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

R2 v1 2026-06-22T08:38:11.165Z