arXiv:hep-lat/0701023·v2·High Energy Physics — Lattice
Diquark correlations in baryons on the lattice with overlap quarks
Ronald Babich (Boston University)🇺🇸 · Nicolas Garron (DESY Zeuthen)🇩🇪 · Christian Hoelbling (Universitaet Wuppertal)🇩🇪 · Joseph Howard (Boston University)🇺🇸 · Laurent Lellouch (CPT Marseille)🇫🇷 · Claudio Rebbi (Boston University)🇺🇸
Abstract
We evaluate baryon wave functions in both the Coulomb and Landau gauge in lattice QCD. These are constructed from quark propagators calculated with the overlap Dirac operator on quenched gauge configurations at beta = 6. By comparing baryon states that differ in their diquark content, we find evidence for enhanced correlation in the scalar diquark channel, as favored by quark models. We also summarize earlier results for diquark masses in the Landau gauge, casting them in a form more easily compared with subsequent studies.
Comments: 9 pages, 12 figures, v2 as appears in PRD