PIRSA:22040105

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_22040105,
            doi = {},
            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}}
          }
          

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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