Speaker
Dr
Masato Yamanaka
(KEK(High Energy Accelerator Research Organization))
Description
We propose helium-4 spallation processes induced by long-lived
stau in supersymmetric standard models, and investigate an impact
of the processes on light elements abundances. We show that,
as long as the phase space of helium-4 spallation processes is
open, they are more important than stau-catalyzed fusion and hence
constrain the stau property.
T.~Jittoh, K.~Kohri, M.~Koike, J.~Sato, K.~Sugai, M.~Yamanaka
and K.~Yazaki, arXiv:1105.1431 [hep-ph].
(accepted for publication in Phys. Rev. D)