3 papers
hep-ph2023
Contribution of Majoron to Hubble tension in gauged U(1) 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) model with the broken lepton number U(1) symmetry. As new particles,…
hep-ph2023
New Constraint on Dark Photon at T2K Off-Axis Near Detector
Takeshi Araki, Kento Asai, Tomoya Iizawa +3
The T2K experiment is one of the most powerful long-baseline experiments to investigate neutrino oscillations. The off-axis near detector called ND280 is installed 280 m downstream…
hep-ph2023
Model Building by Coset Space Dimensional Reduction Scheme Using Twelve-Dimensional Coset Spaces
Kento Asai, Joe Sato, Ryosuke Suda +2
We investigate the twelve-dimensional gauge-Higgs unification models with an eight-dimensional coset space. For each model, we apply the coset space dimensional reduction procedure…