TY  - JOUR
AU  - Wang, Yu-Fei
AU  - Rönchen, Deborah
AU  - Meißner, Ulf-G.
AU  - Lu, Yu
AU  - Shen, Chao-Wei
AU  - Wu, Jia-Jun
TI  - Reaction $\pi N \to \omega N$ in a dynamical coupled-channel approach
JO  - Physical review / D
VL  - 106
IS  - 9
SN  - 2470-0010
CY  - Melville, NY
PB  - Inst.
M1  - FZJ-2022-06016
SP  - 094031
PY  - 2022
AB  - A refined investigation on light flavor meson-baryon scatterings is performed using a dynamical coupled-channel approach, the Jülich-Bonn model, that respects unitartiy and analyticity constraints. The channel space of $\pi N$, $\pi \Delta$, $\sigma N$, $\rho N$, $\eta N$, $K \Lambda$ and $K \Sigma$ is extended by adding the $\omega N$ final state. The spectra of $N^*$ and $\Delta$ resonances are extracted in terms of complex poles of the scattering amplitudes, based on the result of a global fit to a worldwide collection of data, in the energy region from the $\pi N$ threshold to center-of-mass energy $z=2.3$~GeV. A negative value of the $\omega N$ elastic spin-averaged scattering length is extracted, questioning the existence of bound states of the $\omega$ meson in the nuclear matter.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000917769000009
DO  - DOI:10.1103/PhysRevD.106.094031
UR  - https://juser.fz-juelich.de/record/916215
ER  -