Toward an understanding of short distance repulsions among baryons in QCD -- NBS wave functions and operator product expansion --

摘要

We report on our recent attempts to determine the short distance behaviors ofgeneral 2-baryon and 3-baryon forces, which are defined from theNambu-Bethe-Salpeter(NBS) wave function, by using the operator productexpansion and a renormalization group analysis in QCD. We have found that therepulsion at short distance increases as the number of valence quarks increasesor when the number of different flavors involved decreases. This globaltendency suggests a Pauli suppression principle among quark fields at work.