Published January 2007 | Version v1
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Diquark correlations in baryons on the lattice with overlap quarks

Creators

  • 1. Boston Univ., MA (United States). Dept. of Physics
  • 2. Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany)
  • 3. Wuppertal Univ. (Gesamthochschule) (Germany). Fachbereich Physik
  • 4. CNRS Luminy, Marseille (France). Centre de Physique Theorique

Description

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 β=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. (orig.)

Availability note (English)

Available from INIS in electronic form

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Additional details

Publishing Information

Imprint Pagination
11 p.
ISSN
0418-9833
Report number
DESY--07-008

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
38027631
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
CORRELATION FUNCTIONS; CORRELATIONS; DIRAC OPERATORS; EFFECTIVE MASS; GAUGE INVARIANCE; LAMBDA PARTICLES; LATTICE FIELD THEORY; MASS DIFFERENCE; PARTICLE STRUCTURE; PROPAGATOR; QUANTUM CHROMODYNAMICS; QUARKS; REST MASS; SIGMA-1385 BARYONS; WAVE FUNCTIONS
Descriptors DEC
BARYONS; CONSTRUCTIVE FIELD THEORY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; FUNCTIONS; HADRONS; HYPERONS; INVARIANCE PRINCIPLES; LAMBDA BARYONS; MASS; MATHEMATICAL OPERATORS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; QUANTUM OPERATORS; SIGMA BARYONS; STRANGE PARTICLES

Optional Information

Secondary number(s)
BUHEP--07-01; CPT-P--05-2007; WUB--07-01; HEP-LAT--0701023