Comparison of gluon flux-tube distributions for quark-diquark and quark-antiquark hadrons

Journal Article · Tue Dec 01 04:00:00 EST 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.114506· OSTI ID:21313492

Bissey, F; Signal, A I; Leinweber, D B ^[1]

---

1. Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North (New Zealand)

The distribution of gluon fields in hadrons is of fundamental interest in QCD. Using lattice QCD we have observed the formation of gluon flux tubes within three-quark (baryon) and quark plus antiquark (meson) systems for a wide variety of spatial distributions of the color sources. In particular we have investigated three-quark configurations where two of the quarks are close together and the third quark is some distance away, which approximates a quark plus diquark string. We find that the string tension of the quark-diquark string is the same as that of the quark-antiquark string on the same lattice. We also compare the longitudinal and transverse profiles of the gluon flux tubes for both sets of strings, and find them to be of similar radii and to have similar vacuum suppression.

• OSTI ID: 21313492
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 80; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIQUARKS
APPROXIMATIONS
BARYONS
COLOR MODEL
COMPARATIVE EVALUATIONS
CONFIGURATION
GLUONS
LATTICE FIELD THEORY
MESONS
QUANTUM CHROMODYNAMICS
QUARK-ANTIQUARK INTERACTIONS
SPATIAL DISTRIBUTION
STRING THEORY