3 papers
hep-ph2026
A Paradigm for the Coupled-Channel Origin of Resonances: the Exotic in
Zhi Yang, Guang-Juan Wang, Jia-Jun Wu +1
The state observed in the decay provides direct evidence for an isovector open-charm tetraquark state with strangeness--a discover…
hep-ph2025
Resonance sum rules: an application to the square well potential
Zi-Xi Ou-Yang, Philipp Gubler, Makoto Oka +2
We propose an extension of the Quantum Chromodynamics (QCD) sum rules, termed the Resonance sum rules (RSR), to access resonance poles in the complex energy plane. By strategically…
hep-ph2025
Chiral effective theory of scalar and vector diquarks revisited
Yonghee Kim, Makoto Oka, Kei Suzuki
Chiral effective theory of light diquarks is revisited. We construct an effective Lagrangian based on the linear representation of three-flavor chiral symmetry. Here, we focus on t…