https://doi.org/10.1140/epja/i2016-16279-6
Regular Article - Theoretical Physics
Eta and kaon production in a chiral quark model
1
Faculty of Education, University of Ljubljana and J. Stefan Institute, 1000, Ljubljana, Slovenia
2
Faculty of Mathematics and Physics, University of Ljubljana and J. Stefan Institute, 1000, Ljubljana, Slovenia
* e-mail: bojan.golli@ijs.si
Received:
7
April
2016
Accepted:
13
July
2016
Published online:
14
September
2016
We apply a coupled-channel formalism incorporating quasi-bound quark-model states to calculate pion scattering into ,
and
channels, as well
,
,
, and
photoproduction 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 near 1685 MeV in the
channel.
© SIF, Springer-Verlag Berlin Heidelberg, 2016