Vector meson-Baryon dynamics and generation of resonances
High Energy Physics - Phenomenology
2011-07-08 v1 Nuclear Theory
Abstract
The purpose of this work is to study vector meson-octet baryon interactions with the aim to find dynamical generation of resonances in such systems. For this, we consider s-, t-, u-channel diagrams along with a contact interaction originating from the hidden local symmetry Lagrangian. We find the contribution from all these sources, except the s-channel, to be important. The amplitudes obtained by solving coupled channel Bethe Salpeter equations for systems with total strangeness zero, show generation of one isospin 3/2, spin 1/2 resonance and three isospin 1/2 resonances: two with spin 3/2 and one with spin 1/2. We identify these resonances with , , , and , respectively.
Cite
@article{arxiv.1104.0307,
title = {Vector meson-Baryon dynamics and generation of resonances},
author = {K. P. Khemchandani and H. Kaneko and H. Nagahiro and A. Hosaka},
journal= {arXiv preprint arXiv:1104.0307},
year = {2011}
}