268 citations · 3.6k across the 103 of their papers we have counts for
5 papers · 1 filter
Exposing new scalars hiding behind the Higgs boson
Qing-Hong Cao, Kun Cheng, Yandong Liu +3
It is possible that there is another scalar hiding behind the known 125 GeV Higgs boson. If the hidden scalar exhibits a CP property different from the Higgs boson, it can be expos…
Multi-step phase transition and gravitational wave from general scalar extensions
Qing-Hong Cao, Katsuya Hashino, Xu-Xiang Li +1
Multi-step phase transition provides a paradigm in which a broken symmetry during phase transition can be restored, enriching the phenomena of both dark matter and baryon asymmetry…
Effective field theory in light of relative entropy
Qing-Hong Cao, Naoto Kan, Daiki Ueda
We study constraints on the effective field theory (EFT) from the relative entropy between two theories: we refer to these as target and reference theories. The consequence of the…
CP Phases in 2HDM and Effective Potential: A Geometrical View
Qing-Hong Cao, Kun Cheng, Changlong Xu
Using a geometric description of 2HDM, we classify CP invariants into three independent sectors such as scalar potential, Yukawa interaction and CKM matrix. Thermal effective poten…
Entropy constraints on effective field theory
Qing-Hong Cao, Daiki Ueda
In effective field theory, the positivity bounds of higher derivative operators are derived from analyticity, causality, and unitarity. We show that the positivity bounds on some o…