13 citations · 13 across the 5 of their papers we have counts for
5 papers
Multipositivity Constrains the Chiral Lagrangian
Clifford Cheung, Jaehoon Jeong, Pyungwon Ko +3
The chiral Lagrangian is a cornerstone of modern particle physics, offering a systematic and quantitative description of low-energy pions. Using tools from the modern scattering am…
Explicit Conditions for Diagnosing Tree-Level Unitarity
Jaehoon Jeong, Pyungwon Ko, Yu-Hui Zheng
We explicitly present all coupling conditions required for tree-level unitarity (tree unitarity) in theories with a finite number of massive and massless particles of spin up to 1.…
Constraining Millicharged dark matter with Gravitational positivity bounds
Suro Kim, Pyungwon Ko
Gravitational positivity bounds provide consistency conditions for effective field theories with gravity. They turn out to be phenomenologically useful by providing lower bounds in…
Explaining ATOMKI, , and MiniBooNE anomalies with light mediators in extended model
Sumit Ghosh, Pyungwon Ko
We consider extensions of Type-I 2HDM plus a singlet scalar , introducing a new Higgs doublet and a singlet charged under . The SM Higgs doublet $…
Is Upsilon(3S) a pure S-wave?
Sumantra Chakravarty, Sun Myong Kim, Pyungwon Ko
Assuming the QCD multipole expansion is applicable to hadronic transitions of Upsilon(3S) into lower level bottomonia, we consider the possibility that Upsilon(3S) has a D-wave com…