String breaking by dynamical fermions in three-dimensional lattice QCD

Abstract

The first observation is made of hadronic string breaking due to dynamical fermions in zero temperature lattice QCD. The simulations are done for SU(2) color in three dimensions, with two flavors of staggered fermions. The results have clear implications for the large scale simulations that are being done to search (so far, without success) for string breaking in four-dimensional QCD. In particular, string breaking is readily observed using only Wilson loops to excite a static quark-antiquark pair. Improved actions on coarse lattices are used, providing an extremely efficient means to access the quark separations and propagation times at which string breaking occurs.

Revised version to appear in Physical Review D, has additional discussion of the results, additional references, modified title, larger figures

References in corpus (3)

• String Breaking in Non-Abelian Gauge Theories with Fundamental Matter Fields
• String breaking in SU(2) gauge theory with scalar matter fields
• Strong Coupling Model for String Breaking on the Lattice

Cited by in corpus (12)

• Observation of String Breaking in QCD
• Casimir Scaling and String Breaking in G(2) Gluodynamics
• Dynamics of Monopoles and Flux Tubes in Two-Flavor Dynamical QCD
• Zero temperature string breaking in lattice quantum chromodynamics
• String Breaking in Four Dimensional Lattice QCD
• String Breaking and Monopoles: a Case Study in the 3D Abelian Higgs Model
• Adjoint "quarks" on coarse anisotropic lattices: Implications for string breaking in full QCD
• Overlap of the Wilson loop with the broken-string state
• Screening and confinement in U(1)^{N-1} Abelian effective theories
• Matter degrees of freedom and string breaking in Abelian projected quenched SU(2) QCD
• Static potential and local color fields in unquenched lattice QCD${}_3$
• String Breaking and Z(2) Local Symmetry in the 3D Georgi-Glashow model