Tatsuya Hayashi

collaborators

2 papers

hep-ph2025

Detecting Sterile Neutrino Dark Matter at MeV Gamma-Ray Observatories

Subaru Fujisawa, Tatsuya Hayashi, Shigeki Matsumoto +1

We explore the indirect detection of sterile neutrino dark matter within the gauged $U (1)_{B - L}$ extension of the Standard Model, in which three right-handed neutrinos account for…

hep-ph2024

Féeton dark matter above the $e^{-} e^{+}$ threshold

Tatsuya Hayashi, Shigeki Matsumoto, Yuki Watanabe +1

The new gauge boson introduced in the minimal extension of the standard model (SM) by gauging the U(1) $_{B - L}$ symmetry plays the role of dark matter when the U(1) $_{B - L}$ …

Detecting Sterile Neutrino Dark Matter at MeV Gamma-Ray Observatories

Féeton dark matter above the e−e+ threshold

Féeton dark matter above the $e^{-} e^{+}$ threshold