Constraining EDM and MDM lepton dimension five interactions in the electroweak sector

• Main Authors: Araujo, Jonas B, Mouchrek-Santos, Victor E, Santos, Frederico E. P. dos, Silva, Pedro D. S, FerreiraJr, Manoel M
• Format: Journal Article
• Language: English
• Published: 17-01-2020
• Subjects: Physics - High Energy Physics - Phenomenology; Physics - High Energy Physics - Theory
• DOI: 10.48550/arxiv.2001.06233

We investigate dimension five Lorentz-violating nonminimal interactions in
the electroweak sector, in connection with the possible generation of electric
dipole moment (EDM), weak electric dipole moment (WEDM), magnetic dipole moment
(MDM) and weak magnetic dipole moment (WMDM) for leptons. These couplings are
composed of the physical fields and LV tensors of ranks ranging from 1 to 4.
The CPT-odd couplings do no generate EDM\ behavior and do not provide the
correct MDM\ signature, while the CPT-even ones yield EDM and MDM\ behavior,
being subject to improved constraining. Tau lepton experimental data is used to
constrain the WEDM\ and WMDM couplings to the level of $10^{-4}\left(
\text{GeV}\right) ^{-1},$ whereas electron MDM and EDM data is employed to
improve constraints to the level of $10^{-17}\left( \text{GeV}\right) ^{-1}$
and $10^{-11}\left( \text{GeV}\right) ^{-1},$ respectively.