257 citations · 2.2k across the 81 of their papers we have counts for
79 papers
Precise Estimate of Charged Higgsino/Wino Decay Rate
Masahiro Ibe, Yuhei Nakayama, Satoshi Shirai
Higgsinos and Winos in the supersymmetric Standard Model are prime candidates for dark matter due to their weakly interacting nature. The mass differences between their charged com…
Gravitational Positivity for Phenomenologists: Dark Gauge Boson in the Swampland
Katsuki Aoki, Toshifumi Noumi, Ryo Saito +4
The gravitational positivity bound gives quantitative "swampland'' constraints on low-energy effective theories inside theories of quantum gravity. We give a comprehensive discussi…
Enhanced prospects for direct detection of inelastic dark matter from a non-galactic diffuse component
Gonzalo Herrera, Alejandro Ibarra, Satoshi Shirai
In some scenarios, the dark matter particle predominantly scatters inelastically with the target, producing a heavier neutral particle in the final state. In this class of scenario…
Precise Estimate of Charged Wino Decay Rate
Masahiro Ibe, Masataka Mishima, Yuhei Nakayama +1
The Wino is an triplet Majorana fermion and a well-motivated dark matter candidate. The mass difference between the charged and the neutral Winos is small than…
More on Fake GUT
Masahiro Ibe, Satoshi Shirai, Motoo Suzuki +2
It is remarkable that the matter fields in the Standard Model (SM) are apparently unified into the representations. A straightforward explanation of this fact is t…
QCD Axion Search with ILC Beam Facility
Hajime Fukuda, Hidetoshi Otono, Satoshi Shirai
One of the most promising methods to search for axions is a light-shining-through-walls (LSW) experiment. In this work, we discuss the possibility of performing an LSW experiment a…