Baryonic Correlation Functions in the Random Instanton Vacuum

Details Baryonic Correlation Functions in the Random Instanton Vacuum Baryonic Correlation Functions in the Random Instanton Vacuum

1993-06-03

arxiv.org/abs/hep-ph/9306220v1

Nucl.Phys. B412 (1994) 143-168

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages (LaTex), figures can be obtained directly from the authors

Scientific paper

10.1016/0550-3213(94)90497-9

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.

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