240 citations · 1.3k across the 27 of their papers we have counts for
5 papers · 1 filter
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{…
Gravitational waves from first-order phase transitions: Towards model separation by bubble nucleation rate
Ryusuke Jinno, Sangjun Lee, Hyeonseok Seong +1
We study gravitational-wave production from bubble collisions in a cosmic first-order phase transition, focusing on the possibility of model separation by the bubble nucleation rat…
Gravitational waves from bubble dynamics: Beyond the Envelope
Ryusuke Jinno, Masahiro Takimoto
We study gravitational-wave production from bubble dynamics (bubble collisions and sound waves) during a cosmic first-order phase transition with an analytic approach. We first pro…
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…
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…