Study of hadron deformation in lattice QCD

Journal Article · Sat Nov 01 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.094506· OSTI ID:21254633

Alexandrou, Constantia; Koutsou, Giannis ^[1]

---

1. Department of Physics, University of Cyprus, CY-1678 (Cyprus)

We develop the formalism for the evaluation of density-density correlators in lattice QCD that includes techniques for the computation of the all-to-all propagators involved. A novel technique in this context is the implementation of the one-end trick in the meson sector. Density-density correlators provide a gauge invariant definition for the hadron wave function and yield information on hadron deformation. We evaluate density-density correlators using two degenerate flavors of dynamical Wilson fermions for the pion, the rho meson, the nucleon, and the {delta}. Using the one-end trick we obtain results that clearly show deformation of the rho meson.

• OSTI ID: 21254633
• Journal Information: Physical Review. D, Particles Fields, Vol. 78, Issue 9; Other Information: DOI: 10.1103/PhysRevD.78.094506; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRELATIONS
DEFORMATION
DENSITY
EVALUATION
FLAVOR MODEL
GAUGE INVARIANCE
HADRONS
LATTICE FIELD THEORY
MESONS
NUCLEONS
PIONS
PROPAGATOR
QUANTUM CHROMODYNAMICS
RHO-770 MESONS
WAVE FUNCTIONS