462 citations · 713 across the 5 of their papers we have counts for
5 papers
Big-Bang Nucleosynthesis and Gravitino
Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi +1
We derive big-bang nucleosynthesis (BBN) constraints on both unstable and stable gravitino taking account of recent progresses in theoretical study of the BBN processes as well as…
QCD Correction to Neutralino Annihilation Process and Dark Matter Density in Supersymmetric Models
Takeo Moroi, Yukinari Sumino, Akira Yotsuyanagi
We calculate QCD correction to the neutralino annihilation cross section into quark anti-quark final state and discuss its implications to the calculation of neutralino relic densi…
Big-Bang Nucleosynthesis with Unstable Gravitino and Upper Bound on the Reheating Temperature
Kazunori Kohri, Takeo Moroi, Akira Yotsuyanagi
We study the effects of the unstable gravitino on the big-bang nucleosynthesis. If the gravitino mass is smaller than \sim 10 TeV, primordial gravitinos produced after the inflatio…
Reconstructing Dark Matter Density with e^+e^- Linear Collider in Focus-Point Supersymmetry
Takeo Moroi, Yasuhiro Shimizu, Akira Yotsuyanagi
It has been known that, in the focus point scenario of supersymmetry, the thermal relic of the lightest superparticle (LSP) is known to be a good candidate of the cold dark matter.…
Raising Sfermion Masses by Adding Extra Matter Fields
Motoi Endo, Masahiro Yamaguchi, Akira Yotsuyanagi
The renormalization group flow of soft supersymmetry breaking masses is sensitive to the field contents of the theory one considers. We point out that the addition of extra vector-…