# Standard Model sources of CP violation and EDMs

### APA

Pospelov, M. (2022). Standard Model sources of CP violation and EDMs. Perimeter Institute. https://pirsa.org/22040105

### MLA

Pospelov, Maxim. Standard Model sources of CP violation and EDMs. Perimeter Institute, Apr. 05, 2022, https://pirsa.org/22040105

### BibTex

@misc{ pirsa_PIRSA:22040105, doi = {10.48660/22040105}, url = {https://pirsa.org/22040105}, author = {Pospelov, Maxim}, keywords = {Particle Physics}, language = {en}, title = {Standard Model sources of CP violation and EDMs}, publisher = {Perimeter Institute}, year = {2022}, month = {apr}, note = {PIRSA:22040105 see, \url{https://pirsa.org}} }

Maxim Pospelov University of Minnesota

## Abstract

I review the main mechanisms that convert fundamental CP-violating parameters (theta_QCD and Kobayashi-Maskawa phase) to the observable electric dipole moments (EDMs). Given recent progress, the EDMs connected to electron spin (paramagnetic EDMs) are calculated. The limit on QCD theta angle is 3 * 10^(-8) and somewhat subdominant to neutron EDM, but can be improved. The Kobayashi-Maskawa phase contributes to paramagnetic EDMs at the level of 10^{-35} e cm in units of equivalent electron EDM, which is much larger than what was previously expected.

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