Baryonic Correlation Functions in the Random Instanton Vacuum
High Energy Physics - Phenomenology
2009-10-22 v1
Abstract
We study baryon and diquark correlation functions in the framework of an instanton model for the QCD vacuum. The model naturally accomodates a light scalar diquark. As a consequence, the correlation functions for the nucleon and delta are found to be qualitatively different. Using a complete set of all available correlation functions we determine masses and coupling constants for these particles. We compare our results with predictions from QCD sum rules and recent lattice measurement of point-to-point correlators.
Cite
@article{arxiv.hep-ph/9306220,
title = {Baryonic Correlation Functions in the Random Instanton Vacuum},
author = {T. Schaefer and E. V. Shuryak and J. Verbaarschot},
journal= {arXiv preprint arXiv:hep-ph/9306220},
year = {2009}
}
Comments
31 pages (LaTex), figures can be obtained directly from the authors