Shohei Okawa

collaborators

3 papers

hep-ph2026

UV cut-off of the Standard Model and proton decays

Ryuichiro Kitano, Shohei Okawa

Non-observation of proton decays as well as the smallness of the neutrino masses can naturally be explained by the accidental baryon and lepton number symmetry in the Standard Mode…

hep-ph2025

Heavy Neutral Lepton at Same-Sign Muon Collider

Ryuichiro Kitano, Ian Low, Ryutaro Matsudo +2

We explore the discovery potential of heavy neutral leptons (HNLs), motivated by models addressing the origin of neutrino masses, at the proposed high-energy same-sign muon collide…

hep-ph2025

Higgs boson production at $I^¼^{+} I^¼^{+}$ colliders

Yu Hamada, Ryuichiro Kitano, Ryutaro Matsudo +4

We study Higgs boson production at $I^¼^{+} I^¼^{+}$ colliders at high energy. Since both initial-state particles are positively charged, there is no $W$ boson fusion at the leading orde…

UV cut-off of the Standard Model and proton decays

Heavy Neutral Lepton at Same-Sign Muon Collider

Higgs boson production at I^¼+I^¼+ colliders

Higgs boson production at $I^¼^{+} I^¼^{+}$ colliders