11 papers
Systematic derivation of the Boltzmann equation for electroweak baryogenesis
Motoi Endo, Yushi Mura, Tenta Tsuji
We derive the Boltzmann equation for electroweak baryogenesis within a field-theoretical framework. We first algebraically solve the Kadanoff--Baym equations by incorporating the e…
Dark Matter Interpretation of the Super-Kamiokande Antineutrino Excess in model
Motoi Endo, Yushi Mura, Tenta Tsuji
Recent Super-Kamiokande analyses of the diffuse supernova neutrino background, based on data across all SK phases, indicate a mild preference over the zero-DSNB hypothesis at the l…
Feasibility Study of Lepton Number Violation in Rare and Meson Decays
Motoi Endo, Kåre Fridell, Sho Iwamoto +2
We study lepton-number-violating interactions at dimension seven in the Standard Model effective field theory that contribute to the meson decays and . Such…
Classification of Higgs sectors from group theoretical properties of UV gauge theories
Shinya Kanemura, Yushi Mura, Tetsuo Shindou
Extended Higgs sectors are often introduced to explain phenomena beyond the standard model (BSM). The existence of multiple scalar fields may cause the Landau pole below the Planck…
Electroweak baryogenesis in 2HDM without EDM cancellation
Masashi Aiko, Motoi Endo, Shinya Kanemura +1
We study two Higgs doublet models with successful electroweak baryogenesis but without cancellations of electric dipole moments (EDMs). For the baryogenesis, additional scalar boso…
Testing the gauged model for loop induced neutrino mass with dark matter
Guohao Ying, Shinya Kanemura, Yushi Mura
We present a new viable benchmark scenario under the current experimental data for the model which can explain tiny mass of active neutrinos and dark matter, as a summary of our re…