Speaker
Mitsuru Kakizaki
(University of Toyama)
Description
We discuss the thermal relic abundance of the lightest Kaluza-Klein (KK) particle in phenomenological universal extra dimension models. We point out that its thermal relic abundance depends significantly on the mass degeneracy between the KK-photon and other KK particles because of considerable coannihilation effects.
Primary author
Mitsuru Kakizaki
(University of Toyama)
Co-authors
Akiteru Santa
(University of Toyama)
Yoshiaki Ishigure
(University of Toyama)
