Osamu Seto

activity

20242026

most citedSmooth hybrid inflation in light of ACT DR6 data

12 citations · 19 across the 8 of their papers we have counts for

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hep-ph2025

Renormalization Group Running of the Minimal Leptophilic Dark Matter Model toward a UV Completion

Osamu Seto, Tetsuo Shindou, Takanao Tsuyuki

We study the renormalization group running of the coupling constants in a minimal leptophilic dark matter model in which a Standard Model singlet fermion, acting as the dark matter…

hep-ph2025★ 12 cited

Smooth hybrid inflation in light of ACT DR6 data

Nobuchika Okada, Osamu Seto

Smooth hybrid inflation is a hybrid inflation model which is free from topological defects and predicts the density perturbation with the spectral index of about $0.97$ . We show th…

hep-ph2025

New rare meson decay constraints on a light vector in $U (1)_{B - L}, U (1)_{R}$ and the dark photon

Osamu Seto, Takashi Shimomura, Shinsuke Yoshida

We evaluate constraints from flavor changing rare meson decays to a light vector boson $X$ , followed by the decay of the on-shell $X$ into the SM fermions. The flavor changing meso…

Renormalization Group Running of the Minimal Leptophilic Dark Matter Model toward a UV Completion

Smooth hybrid inflation in light of ACT DR6 data

New rare meson decay constraints on a light vector in U(1)B−L​,U(1)R​ and the dark photon

New rare meson decay constraints on a light vector in $U (1)_{B - L}, U (1)_{R}$ and the dark photon