197 citations · 1.9k across the 54 of their papers we have counts for
6 papers · 1 filter
Cosmic-ray Antimatter
Kfir Blum, Ryosuke Sato, Eli Waxman
In recent years, space-born experiments have delivered new measurements of high energy cosmic-ray (CR) and . In addition, unprecedented sensitivity to CR composite an…
and production in collisions and the cosmic-ray flux ratio
Kfir Blum, Ryosuke Sato, Masahiro Takimoto
Secondary astrophysical production of and cosmic rays is considered. Inclusive , , and production cross sections in collisions at large $\sqrt{…
Lepton Electric Dipole Moment and Strong CP Violation
Diptimoy Ghosh, Ryosuke Sato
Contribution of the strong CP angle, , to the Wilson Coefficients of electron and muon electric dipole moment (EDM) operators are discussed. Previously, contribution…
Absolute Lower Bound on the Bounce Action
Ryosuke Sato, Masahiro Takimoto
The decay rate of a false vacuum is determined by the minimal action solution of the tunnelling field: bounce. In this Letter, we focus on models with scalar fields which have a ca…
Muon specific two-Higgs-doublet model
Tomohiro Abe, Ryosuke Sato, Kei Yagyu
We investigate a new type of a two-Higgs-doublet model as a solution of the muon anomaly. We impose a softly-broken symmetry to forbid tree level flavor changing neutra…
Cosmic rays, anti-helium, and an old navy spotlight
Kfir Blum, Kenny Chun Yu Ng, Ryosuke Sato +1
Cosmic-ray anti-deuterium and anti-helium have long been suggested as probes of dark matter, as their secondary astrophysical production was thought extremely scarce. But how does…