Publications (110)
Gravitational waves from the minimal gauged model
Taiki Hasegawa, Nobuchika Okada, Osamu Seto
An additional gauge interaction is one of promising extensions of the standard model of particle physics. Among others, the gauge symmetry is particularly inter…
Polynomial inflation models after BICEP2
Tatsuo Kobayashi, Osamu Seto
Large field inflation models are favored by the recent BICEP2 that has detected gravitational wave modes generated during inflation. We study general large field inflation models f…
Reheating and gravitino production in braneworld inflation
Edmund J. Copeland, Osamu Seto
We consider the constraints that can be imposed on a wide class of Inflation models in modified gravity scenarios in which the Friedmann equation is modified by the inclusion of $Ï…
Gravitational waves in cosmological models of HoÅava-Witten theory
Osamu Seto, Hideo Kodama
We study the behavior of gravitational waves and their backreaction on the background in cosmological solutions of the five-dimensional HoÅava-Witten theory. As a dynamical backgr…
Signal from sterile neutrino dark matter in extra model at direct detection experiment
Osamu Seto, Takashi Shimomura
We examine the possibility that direct dark matter detection experiments find decay products from sterile neutrino dark mater in and models. This is possible…
Displaced vertices and long-lived charged particles in the NMSSM with right-handed sneutrinos
David G. Cerdeno, Victor Martin-Lozano, Osamu Seto
We study LHC signatures of displaced vertices and long-lived charged particles within the context of the Next-to-Minimal Supersymmetric Standard Model with right-handed (RH) sneutr…