Instantons and the singlet-coupling in the chiral quark model
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
Chiral quark model with a broken-U(3) flavor symmetry can be interpreted as the effective theory of the instanton-dominated non-perturbative QCD. This naturally suggests the possibility of a negative singlet/octet coupling ratio, which has been found, in a previous publication, to be compatible with the phenomenological description of the nucleon spin-flavor structure.
Cite
@article{arxiv.hep-ph/9812428,
title = {Instantons and the singlet-coupling in the chiral quark model},
author = {T. P. Cheng and Ling-Fong Li},
journal= {arXiv preprint arXiv:hep-ph/9812428},
year = {2009}
}
Comments
9 pages