77 citations · 160 across the 9 of their papers we have counts for
9 papers · 1 filter
The neutrino masses and the change of allowed parameter region in universal extra dimension models
Shigeki Matsumoto, Joe Sato, Masato Senami +1
Relic abundance of dark matter is investigated in the framework of universal extra dimension models with right-handed neutrinos. These models are free from the serious Kaluza-Klein…
Neutralino Dark Matter in Light Higgs Boson Scenario
Masaki Asano, Shigeki Matsumoto, Masato Senami +1
Phenomenology of neutralino dark matter in the minimal supersymmetric model is discussed for a scenario where the lightest Higgs boson mass is lighter than 114.4 GeV. We show that…
Cosmological implications of supersymmetric axion models
Masahiro Kawasaki, Kazunori Nakayama, Masato Senami
We derive general constraints on supersymmetric extension of axion models, in particular paying careful attention to the cosmological effects of saxion. It is found that for every…
Stability of Metastable Vacua in Gauge Mediated SUSY Breaking Models with Ultra Light Gravitino
Junji Hisano, Minoru Nagai, Masato Senami +1
Recently Murayama and Nomura proposed a simple scheme to construct the gauge mediation models, using metastable supersymmetry breaking vacua. It has a possibility to predict the ul…
Affleck-Dine leptogenesis via multiscalar evolution in a supersymmetric seesaw model
Masato Senami, Tsutomu Takayama
A leptogenesis scenario in a supersymmetric standard model extended with introducing right-handed neutrinos is reconsidered. Lepton asymmetry is produced in the condensate of a rig…
Relic abundance of dark matter in universal extra dimension models with right-handed neutrinos
Shigeki Matsumoto, Joe Sato, Masato Senami +1
Relic abundance of dark matter is investigated in the framework of universal extra dimension models with right-handed neutrinos. These models are free from the serious Kaluza-Klein…