Jul 26 – 30, 2021
US/Eastern timezone

Power divergences of the quark-chromo electric dipole moment operator with the gradient flow

Jul 28, 2021, 7:45 AM
15m
Oral presentation QCD in searches for physics beyond the Standard Model QCD in searches for physics beyond the Standard Model

Speaker

Dr Jangho Kim (Forschungszentrum Jülich)

Description

The quark-chromo electric dipole moment (qCEDM) operator is one of the possible beyond-the-standard-model (BSM) contributions to the electric dipole moment (EDM). Power divergences of lower dimensional operators are introduced to the qCEDM operator by operator mixing. We compute non-perturbatively the qCEDM power divergence coefficient with the gradient flow, allowing us to control the power divergences and perform the continuum and chiral extrapolation. We present the comparison between non-perturbative computation and perturbation theory as a function of bare and renormalized coupling.

Primary authors

Dr Jangho Kim (Forschungszentrum Jülich) Thomas Luu (Forshungszentrum Jülich) Mr Matthew Rizik (Facility for Rare Isotope Beams, Physics Department, Michigan State University) Prof. Andrea Shindler (Facility for Rare Isotope Beams, Physics Department, Michigan State University)

Presentation materials