58 citations · 112 across the 7 of their papers we have counts for
7 papers
Discriminating Minimal SUGRA and Minimal Gauge Mediation Models at the Early LHC
Shoji Asai, Eita Nakamura, Satoshi Shirai
Among various supersymmetric (SUSY) standard models, the gravity mediation model with a neutralino LSP and the gauge mediation model with a very light gravitino are attractive from…
Discovery Potential for Low-Scale Gauge Mediation at Early LHC
Eita Nakamura, Satoshi Shirai
Low-scale gauge-mediated supersymmetry(SUSY)-breaking (GMSB) models with gravitino mass m_{3/2}<16 eV are attractive, since there are no flavor and cosmological problems. In this p…
Low-Scale Gauge Mediation and Composite Messenger Dark Matter
Koichi Hamaguchi, Eita Nakamura, Satoshi Shirai +1
In recent works, we have proposed a possible dark matter in composite messenger gauge mediation models. In this paper, we discuss the details of a composite messenger model taking…
Inverse Problem of Cosmic-Ray Electron/Positron from Dark Matter
Koichi Hamaguchi, Kouhei Nakaji, Eita Nakamura
We discuss the possibility of solving the inverse problem of the cosmic-ray electron/positron from decaying/annihilating dark matter, and show simple analytic formulae to reconstru…
Decaying Dark Matter Baryons in a Composite Messenger Model
Koichi Hamaguchi, Eita Nakamura, Satoshi Shirai +1
A baryonic bound state with a mass of O(100) TeV, which is composed of strongly interacting messenger quarks in the low scale gauge mediation, can naturally be the cold dark matter…
A Measurement of Neutralino Mass at the LHC in Light Gravitino Scenarios
Koichi Hamaguchi, Eita Nakamura, Satoshi Shirai
We consider supersymmetric (SUSY) models in which a very light gravitino is the lightest SUSY particle. Assuming that a neutralino is the next-to-lightest SUSY particle, we present…
Strongly Interacting Gauge Mediation at the LHC
Koichi Hamaguchi, Eita Nakamura, Satoshi Shirai +1
Strongly interacting gauge mediation (SIGM) of supersymmetry breaking is very attractive, since it naturally predicts a light gravitino of mass $\lsim{\cal O}(10)$ eV, which causes…