8 citations · 8 across the 3 of their papers we have counts for
3 papers
astro-ph.CO2025
Interpreting Cosmic Birefringence and DESI Data with Evolving Axion in CDM
Shota Nakagawa, Yuichiro Nakai, Yu-Cheng Qiu +1
Recent cosmological observations have revealed growing tensions with the standard CDM model, including indications of isotropic cosmic birefringence and deviations from …
hep-ph2023
Dissipation of axion energy via the Schwinger and Witten effects
Kwang Sik Jeong, Shota Nakagawa, Fuminobu Takahashi +1
In the presence of an anomalous CP phase in a U(1) gauge theory, a monopole becomes a dyon via the Witten effect. When the anomalous CP phase is promoted to a dynamical field, the…
hep-ph2023★ 8 cited
Dynamics of Superconformal Axion: Quality and Scalegenesis
Shota Nakagawa, Yuichiro Nakai, Masaki Yamada +1
We explore a dynamical mechanism to realize the emergence of a global symmetry and its spontaneous breaking at an intermediate scale for an axion solution to the st…