81 citations · 471 across the 22 of their papers we have counts for
23 papers
Light Thermal Self-Interacting Dark Matter in the Shadow of Non-Standard Cosmology
Shu-Yu Ho, Pyungwon Ko, Dibyendu Nanda
In this paper, we construct a viable model for a GeV scale self-interacting dark matter (DM), where the DM was thermally produced in the early universe. Here, a new vector-like fer…
Interplay between Higgs inflation and dark matter models with dark gauge symmetry
Sarif Khan, Jinsu Kim, Pyungwon Ko
We investigate dark matter phenomenology and Higgs inflation in a dark -extended model. The model features two dark matter candidates, a dark fermion and a dark vector boso…
Dark matter physics in dark gauge symmetry with non-Abelian kinetic mixing
P. Ko, Takaaki Nomura, Hiroshi Okada
We investigate a model of dark sector based on non-Abelian gauge symmetry. This dark gauge symmetry is broken into discrete via vacuum expectation values of two rea…
LHCb anomaly and physics in flavored Z models with flavored Higgs doublets
P. Ko, Yuji Omura, Yoshihiro Shigekami +1
We study an extended Standard Model with a gauged U(1) flavor symmetry, motivated not only by the fermion mass hierarchy but also by the excesses in …
Asymmetric Dark Matter Bound State
Xiao-Jun Bi, Zhaofeng Kang, P. Ko +2
We propose an interesting framework for asymmetric scalar dark matter (ADM), which has novel collider phenomenology in terms of an unstable ADM bound state (ADMonium) produced via…
New Avenues to Heavy Right-handed Neutrinos with Pair Production at Hadronic Colliders
Zhaofeng Kang, P. Ko, Jinmian Li
In many models incorporating the type-I seesaw mechanism, the right-handed neutrino () couples to heavy vector/scalar bosons and thereby has resonant pair production. It barely…