Eta and kaon production in a chiral quark model
High Energy Physics - Phenomenology
2016-10-12 v2 Nuclear Theory
Abstract
We apply a coupled-channel formalism incorporating quasi-bound quark-model states to calculate pion scattering into eta N, K Lambda and K Sigma channels, as well eta p, eta n, K+Lambda, and K0Sigma+ photo-production processes. The meson-baryon and photon-baryon vertices are determined in a SU(3) version of the Cloudy Bag Model. Our model predicts sizable amplitudes in the P11, P13, P33 and S11 partial waves in agreement with the latest MAID isobar model and the recent partial-wave analyses of the Bonn-Gatchina group. We are able to give a quark-model explanation for the apparent resonance at 1685 MeV in the eta n channel.
Keywords
Cite
@article{arxiv.1604.01937,
title = {Eta and kaon production in a chiral quark model},
author = {Bojan Golli and Simon Širca},
journal= {arXiv preprint arXiv:1604.01937},
year = {2016}
}
Comments
14 pages, 12 figures, to appear in EPJ A