27 citations · 110 across the 6 of their papers we have counts for
7 papers · 1 filter
Direct/indirect detection signatures of nonthermally produced dark matter
Minoru Nagai, Kazunori Nakayama
We study direct and indirect detection possibilities of neutralino dark matter produced non-thermally by e.g. the decay of long-lived particles, as is easily implemented in the cas…
Upperbound on Squark Masses in Gauge-Mediation Model with Light Gravitino
Junji Hisano, Minoru Nagai, Shohei Sugiyama +1
We examine stabilities of our supersymmetry-breaking false vacuum in a low-energy direct gauge mediation model of SUSY breaking. The stability required in the high-temperature earl…
"Flavored" Electric Dipole Moments in Supersymmetric Theories
J. Hisano, M. Nagai, P. Paradisi
The Standard Model (SM) predictions for the hadronic electric dipole moments (EDMs) are well far from the present experimental resolutions, thus, the EDMs represent very clean prob…
Nonthermal dark matter in mirage mediation
Minoru Nagai, Kazunori Nakayama
In mirage-mediation models there exists a modulus field whose mass is O(1000) TeV and its late-decay may significantly change the standard thermal relic scenario of the dark matter…
Stability of Metastable Vacua in Gauge Mediated SUSY Breaking Models with Ultra Light Gravitino
Junji Hisano, Minoru Nagai, Masato Senami +1
Recently Murayama and Nomura proposed a simple scheme to construct the gauge mediation models, using metastable supersymmetry breaking vacua. It has a possibility to predict the ul…
Electric Dipole Moments in PseudoDirac Gauginos
Junji Hisano, Minoru Nagai, Tatsuya Naganawa +1
The SUSY CP problem is one of serious problems in construction of realistic supersymmetric standard models. We consider the problem in a framework in which adjoint chiral multiplet…