Speaker
Yechan Kim
(KAIST)
Description
Fundamental properties of neutrinos need not remain constant, but may become dynamical through a non-standard interaction with the dark sector. An oscillating wave dark matter can induce periodic variations in neutrino mass or transitions between Dirac and Majorana types. The resulting dynamics can modulate rare neutrino processes, including neutrinoless double beta decay and cosmic neutrino background. These modulations provide distinctive time-dependent signatures for experimental searches. We also generalized this framework to a mixed wave dark matter scenario that produces non-harmonic behavior with multiple frequencies. This talk is based on our recent papers PRD 108, 095028 (2023); JHEP 07 (2025) 269; arXiv: 2604.14480.
Authors
Hye-Sung Lee
(KAIST)
Yechan Kim
(KAIST)