Operator product expansion and the short distance behavior of 3-flavor baryon potentials

Sinya Aoki, J. Balog, Peter Weisz

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The short distance behavior of baryon-baryon potentials defined through Nambu-Bethe-Salpeter wave functions is investigated using the operator product expansion. In a previous analysis of the nucleon-nucleon case, corresponding to the SU(3) channels 27 s and 10̄ a, we argued that the potentials have a repulsive core. A new feature occurs for the case of baryons made up of three flavors: manifestly asymptotically attractive potentials appear in the singlet and octet channels. Attraction in the singlet channel was first indicated by quark model considerations, and recently been found in numerical lattice simulations. The latter have however not yet revealed asymptotic attraction in the octet channels; we give a speculative explanation for this apparent discrepancy.

Original languageEnglish
Article number083
JournalJournal of High Energy Physics
Volume2010
Issue number9
DOIs
Publication statusPublished - 2010

Fingerprint

baryons
operators
expansion
octets
products
attraction
quark models
wave functions
simulation

Keywords

  • Asymptotic freedom
  • Lattice QCD
  • QCD
  • Renormalization group

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Operator product expansion and the short distance behavior of 3-flavor baryon potentials. / Aoki, Sinya; Balog, J.; Weisz, Peter.

In: Journal of High Energy Physics, Vol. 2010, No. 9, 083, 2010.

Research output: Contribution to journalArticle

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