The $\pi-$Gluon Exchange Interaction Between Constituent Quarks
Abstract
The interaction mediated by irreducible pion and gluon exchange between constituent quarks is calculated and shown to have a strong tensor component, which tends to cancel the pion exchange tensor interaction between quarks. Its spin-spin component is somewhat weaker than the pion exchange spin-spin interaction, while its central and spin-orbit components are small in comparison to the corresponding single gluon exchange interactions. The combination of the gluon exchange interaction with the single pion exchange interaction and a weak gluon exchange interaction between constituent quarks has the qualitative features required for understanding the hyperfine splittings of the spectra of the nucleon and the resonances.
Cite
@article{arxiv.hep-ph/9805280,
title = {The $\pi-$Gluon Exchange Interaction Between Constituent Quarks},
author = {C. Helminen and D. O. Riska},
journal= {arXiv preprint arXiv:hep-ph/9805280},
year = {2009}
}
Comments
LaTeX, 17 pages, 5 Postscript figures