activity
19962026
most citedNon-Perturbative Effect on Dark Matter Annihilation and Gamma Ray Signature from Galactic Center

568 citations · 5.2k across the 127 of their papers we have counts for

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Showing 2007Show all

6 papers · 1 filter

hep-ph2007

The neutrino masses and the change of allowed parameter region in universal extra dimension models

Shigeki Matsumoto, Joe Sato, Masato Senami +1

Relic abundance of dark matter is investigated in the framework of universal extra dimension models with right-handed neutrinos. These models are free from the serious Kaluza-Klein…

hep-ph2007★ 14 cited

Neutralino Dark Matter in Light Higgs Boson Scenario

Masaki Asano, Shigeki Matsumoto, Masato Senami +1

Phenomenology of neutralino dark matter in the minimal supersymmetric model is discussed for a scenario where the lightest Higgs boson mass is lighter than 114.4 GeV. We show that…

hep-ph2007

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…

hep-ph2007★ 10 cited

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…

hep-ph2007★ 15 cited

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-…

hep-ph2007★ 25 cited

Relic abundance of dark matter in universal extra dimension models with right-handed neutrinos

Shigeki Matsumoto, Joe Sato, Masato Senami +1

Relic abundance of dark matter is investigated in the framework of universal extra dimension models with right-handed neutrinos. These models are free from the serious Kaluza-Klein…