2 papers
hep-ph2025
Effect of eigenstates on spectra in coupled-channel scattering with the chiral unitary model
Takuma Nishibuchi, Tetsuo Hyodo
In recent years, as experimental data on the excited and states have accumulated, theoretical analyses based on chiral dynamics have also been actively pursued.…
hep-ph2025
Eigenstates in coupled-channel scattering amplitude and their effects on spectrum
Takuma Nishibuchi, Tetsuo Hyodo
In general, discrete eigenstates such as resonances are represented by poles of the scattering amplitude, analytically continued to the complex energy plane. In multi-channel scatt…