568 citations · 5.2k across the 127 of their papers we have counts for
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Effective theoretical approach of Gauge-Higgs unification model and its phenomenological applications
Naoyuki Haba, Shigeki Matsumoto, Nobuchika Okada +1
We derive the low energy effective theory of Gauge-Higgs unification (GHU) models in the usual four dimensional framework. We find that the theories are described by only the zero-…
Heavy Wino-like Neutralino Dark Matter Annihilation into Antiparticles
Junji Hisano, Shigeki Matsumoto, Osamu Saito +1
The lightest neutralino is a viable dark matter (DM) candidate. In this paper we study indirect detection of the wino-like neutralino DM using positrons and antiprotons from the an…
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…