Kento Asai

collaborators

4 papers

hep-ph2025

Cosmological Bounds on Scotogenic Model with Asymmetric Mediator

Kento Asai, Seishi Enomoto, Takuya Hirose +1

We study cosmological constraints on the asymmetric mediator scenario, a variant of the scotogenic model that addresses the origins of neutrino masses, dark matter (DM), and the ba…

hep-ph2025

An Analytic Prescription for $t$ -channel Singularities

Kento Asai, Nagisa Hiroshima, Joe Sato +2

The $t$ -channel singularity is a divergence in the scattering amplitude which occurs when a stable particle propagating in $t$ -channel scattering process becomes an on-shell state.…

hep-ph2025

Gauge symmetry breaking with $S^{2}$ extra dimensions

Kento Asai, Yuki Honda, Hiroki Ishikawa +2

We consider symmetry breaking of arbitrary gauge groups on a six-dimensional space-time which consists of a four-dimensional Minkowski space-time $M^{4}$ and a two-dimensional sphere…

hep-ph2024

New Constraints on Gauged U(1) $_{L_{I^} ¼ - L_{I ¨} }$ Models via $Z - Z^{'}$ Mixing

Kento Asai, Coh Miyao, Shohei Okawa +1

It is known that the model based on U(1) $_{L_{I^} ¼ - L_{I ¨} }$ gauge symmetry can explain not only the discrepancy between the measured value of muon $g - 2$ and the theoretical prediction,…

Cosmological Bounds on Scotogenic Model with Asymmetric Mediator

An Analytic Prescription for t-channel Singularities

Gauge symmetry breaking with S2 extra dimensions

New Constraints on Gauged U(1)LI^​¼−LI¨​​ Models via Z−Z′ Mixing

An Analytic Prescription for $t$ -channel Singularities

Gauge symmetry breaking with $S^{2}$ extra dimensions

New Constraints on Gauged U(1) $_{L_{I^} ¼ - L_{I ¨} }$ Models via $Z - Z^{'}$ Mixing