Joe Sato

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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-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-ph2023

Contribution of Majoron to Hubble tension in gauged U(1) $_{L_{μ} - L_{τ}}$ Model

Kento Asai, Tomoya Asano, Joe Sato +1

In this paper, we analyze parameter regions that can alleviate the Hubble tension in the U(1) $_{L_{μ} - L_{τ}}$ model with the broken lepton number U(1) $_{L}$ symmetry. As new particles,…

Gauge symmetry breaking with S2 extra dimensions

An Analytic Prescription for t-channel Singularities

Contribution of Majoron to Hubble tension in gauged U(1)Lμ​−Lτ​​ Model

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

An Analytic Prescription for $t$ -channel Singularities

Contribution of Majoron to Hubble tension in gauged U(1) $_{L_{μ} - L_{τ}}$ Model