26–30 May 2025
Venezia, Istituto Veneto di Lettere, Scienze ed Arti - Palazzo Franchetti
Europe/Rome timezone
Early Bird fee deadline extended to April 25th

A Large Muon EDM from Dark Matter

28 May 2025, 17:30
8m
Palazzo Franchetti (Venezia, Istituto Veneto di Lettere, Scienze ed Arti - Palazzo Franchetti)

Palazzo Franchetti

Venezia, Istituto Veneto di Lettere, Scienze ed Arti - Palazzo Franchetti

S. Marco, 2847, 30124 Venezia VE
Flash Plenary Talk Muon dipole moments

Speaker

Dr Yoshihiro SHIGEKAMI (Henan Normal University)

Description

We explore a model of dark matter (DM) that can explain the reported discrepancy in the muon anomalous magnetic moment and predict a large electric dipole moment (EDM) of the muon. The model contains a DM fermion and new scalars whose exclusive interactions with the muon radiatively generate the observed muon mass. Constraints from DM direct and indirect detection experiments as well as collider searches are safely evaded. The model parameter space that gives the observed DM abundance and explains the muon $g-2$ anomaly leads to the muon EDM of $d_{\mu} \simeq (4 - 5) \times 10^{−22} \, e \, {\rm cm}$ that can be probed by the projected PSI muEDM experiment. Another viable parameter space even achieves $d_{\mu} = \mathcal{O}(10^{−21}) \, e \, {\rm cm}$ reachable by the ongoing Fermilab Muon $g-2$ experiment and the future J-PARC Muon $g-2$/EDM experiment.

Charged lepton flavor violation: theory, experiment and future perspectives none
New Physics opportunities with low and high energy muon beams none
Neutrino physics with muon beams: theory, experiments and future perspectives none
Muons beams technologies: production, cooling and acceleration at different energy none
Advancements in Muon-based Facilities and Broader Applications none
Muons in other fields: muography, muon spin spectroscopy, muon-catalyzed fusion none

Primary authors

Kim Siang Khaw (Tsung-Dao Lee Institute, Shanghai Jiao Tong University) Ryosuke Sato (Osaka University) Dr Yoshihiro SHIGEKAMI (Henan Normal University) Yuichiro Nakai (Tsung-Dao Lee Institute, Shanghai Jiao Tong University) Zhihao Zhang (Tsung-Dao Lee Institute, Shanghai Jiao Tong University)

Presentation materials

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