242 citations · 677 across the 11 of their papers we have counts for
3 papers · 1 filter
Level Crossing between QCD Axion and Axion-Like Particle
Ryuji Daido, Naoya Kitajima, Fuminobu Takahashi
We study a level crossing between the QCD axion and an axion-like particle, focusing on the recently found phenomenon, the axion roulette, where the axion-like particle runs along…
Domain Wall Formation from Level Crossing in the Axiverse
Ryuji Daido, Naoya Kitajima, Fuminobu Takahashi
We point out that domain wall formation is a more common phenomenon in the Axiverse than previously thought. Level crossing could take place if there is a mixing between axions, an…
Axion domain wall baryogenesis
Ryuji Daido, Naoya Kitajima, Fuminobu Takahashi
We propose a new scenario of baryogenesis, in which annihilation of axion domain walls generates a sizable baryon asymmetry. Successful baryogenesis is possible for a wide range of…