Speaker
Samson Clymton
(Inha University)
Description
We investigate meson resonances with quantum numbers $J^P=1^+$ and $S=0$ from the interaction of the pseudoscalar meson with the vector meson using the coupled-channel approach. Having included all possible one-meson exchange diagrams without an axial-vector meson one, we reproduce the experimental data on charge exchange reaction in $a_1$, $h_1$ and $b_1$ channels. This result exhibits the molecular nature of the axial-vector meson. In addition to that, we extract the pole position and residue of each resonance by scanning the scattering amplitudes in the second Riemann sheets.
Author
Samson Clymton
(Inha University)
Co-author
Hyun-Chul Kim
(Inha University)
