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5 papers · 2 filters
Long life stau in the minimal supersymmetric standard model
Toshifumi Jittoh, Joe Sato, Takashi Shimomura +1
We study the stau lifetime in a scenario with the LSP taken to be a neutralino and the NLSP being a stau, based on the minimal supersymmetric Standard Model. The mass difference be…
Relic Abundance of LKP Dark Matter in UED model including Effects of Second KK Resonances
Mitsuru Kakizaki, Shigeki Matsumoto, Yoshio Sato +1
We reevaluate the thermal relic density of the Kaluza-Klein (KK) dark matter in universal extra dimension models. In particular, we consider the effect of the resonance caused by s…
Monoenergetic Neutrino Beam for Long Baseline Experiments
Joe Sato
In an electron capture process by a nucleus, emitted neutrinos are monoenergetic. By making use of it, we study how to get a completely monoenergetic neutrino beam in a long baseli…
Signature of the Minimal Supersymmetric Standard Model with Right-Handed Neutrinos in Long Baseline Experiments
Toshihiko Ota, Joe Sato
The effective interactions which violate a lepton flavor accompanied with neutrinos (nLFV) are considered. Such a new physics effect is expected to be measured in future neutrino o…
Significant effects of second KK particles on LKP dark matter physics
Mitsuru Kakizaki, Shigeki Matsumoto, Yoshio Sato +1
We point out that Kaluza-Klein (KK) dark matter physics is drastically affected by second KK particles. In this work various interesting phenomena caused by the second KK modes are…