269 citations · 1.6k across the 55 of their papers we have counts for
3 papers · 1 filter
NANOGrav Signal from a Dark Conformal Phase Transition
Kohei Fujikura, Sudhakantha Girmohanta, Yuichiro Nakai +1
We explore the possibility that a confining first-order phase transition of a nearly-conformal dark sector generates the reported NANOGrav signal of a stochastic gravitational wave…
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…
Multi-brane cosmology
Sudhakantha Girmohanta, Seung J. Lee, Yuichiro Nakai +1
5D warped extra dimension models with multiple 3-branes can naturally realize multiple hierarchical mass scales which are ubiquitous in physics beyond the Standard Model. We discus…