197 citations · 1.9k across the 54 of their papers we have counts for
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Cosmological Phase Transitions in Composite Higgs Models
Kohei Fujikura, Yuichiro Nakai, Ryosuke Sato +1
We investigate cosmological phase transitions in various composite Higgs models consisting of four-dimensional asymptotically-free gauge field theories. Each model may lead to a co…
A Large Muon EDM from Dark Matter
Kim Siang Khaw, Yuichiro Nakai, Ryosuke Sato +2
We explore a model of dark matter (DM) that can explain the reported discrepancy in the muon anomalous magnetic moment and predict a large electric dipole moment (EDM) of the muon.…
ALP Dark Matter from Kinetic Fragmentation: Opening up the Parameter Window
Cem Eröncel, Ryosuke Sato, Geraldine Servant +1
The main mechanism responsible for Axion-Like-Particle (ALP) production in the early universe is the so-called misalignment mechanism. Three regimes have been investigated in this…
Muon Electric Dipole Moment as a Probe of Flavor-Diagonal CP Violation
Yuichiro Nakai, Ryosuke Sato, Yoshihiro Shigekami
Electric dipole moments (EDMs) of elementary particles are powerful probes of new physics with flavor-diagonal CP violation. The reported discrepancy in the muon anomalous magnetic…
Baryon Asymmetric Universe from Spontaneous CP Violation
Kohei Fujikura, Yuichiro Nakai, Ryosuke Sato +1
Spontaneous CP violation, such as the Nelson-Barr (NB) mechanism, is an attractive scenario for addressing the strong CP problem while realizing the observed phase of the Cabibbo-K…
Axion Fragmentation on the Lattice
Enrico Morgante, Wolfram Ratzinger, Ryosuke Sato +1
We analyze the phenomenon of axion fragmentation when an axion field rolls over many oscillations of a periodic potential. This is particularly relevant for the case of relaxion, i…