88 citations · 440 across the 12 of their papers we have counts for
6 papers · 1 filter
Cosmology of Gravitino LSP Scenario with Right-Handed Sneutrino NLSP
Koji Ishiwata, Shigeki Matsumoto, Takeo Moroi
We consider supersymmetric model with right-handed (s)neutrinos where the neutrino masses are purely Dirac-type. We discuss cosmology based on such a scenario, paying particular at…
Gravitino Dark Matter with Weak-Scale Right-Handed Sneutrino
Koji Ishiwata, Shigeki Matsumoto, Takeo Moroi
We consider cosmological implications of supersymmetric models with right-handed (s)neutrinos where the neutrino masses are purely Dirac-type. We pay particular attention to the ca…
Decay of Scalar Condensation in Quantum Field Theory
Shigeki Matsumoto, Takeo Moroi
We consider decay processes of scalar-field condensation in the framework of well-established quantum field theory. We postulate that the quantum state corresponding to the scalar-…
Testing the Anomaly Mediation at the LHC
Shoji Asai, Takeo Moroi, Kazuyuki Nishihara +1
We consider a supersymmetric model in which gaugino masses are generated by the anomaly-mediation mechanism while scalar masses are from tree-level supergravity interaction. In suc…
Cosmological Constraints on Neutrino Injection
Toru Kanzaki, Masahiro Kawasaki, Kazunori Kohri +1
We derive general constraints on the relic abundances of a long-lived particle which mainly decays into a neutrino (and something else) at cosmological time scales. Such an exotic…
Big-Bang Nucleosynthesis with Long-Lived Charged Slepton
Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi
We consider constraints on long-lived charged scalar leptons \tilde{l}^\pm in supersymmetric models, where gravitino is the lightest superparticle. We study the decay and hadroniza…