72 citations · 174 across the 4 of their papers we have counts for
4 papers
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…
Enhancement of Line Gamma Ray Signature from Bino-like Dark Matter Annihilation due to CP Violation
Shigeki Matsumoto, Joe Sato, Yoshio Sato
We study the line gamma ray signature from the Galactic Center originating from Bino-like dark matter pair annihilation, when CP is not conserved. We consider the case that the Bin…
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…
Nonexponential decay of an unstable quantum system: Small--value s-wave decay
Toshifumi Jittoh, Shigeki Matsumoto, Joe Sato +2
We study the decay process of an unstable quantum system, especially the deviation from the exponential decay law. We show that the exponential period no longer exists in the case…