2003/01/31 by C. Bérnard, C. Bernard, T. Burch +10 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph
paper · pdf · doi:10.1103/physrevd.68.074505
published as Phys.Rev.D68:074505,2003 · 24 pages, 12 figures. Replaced to match published version
openalex publication_date 2003/10/29 · arxiv created 2003/11/06 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We report on a lattice determination of the mass of the exotic 1^\ensuremath-+ hybrid meson using an improved Kogut-Susskind action. Results from both quenched and dynamical quark simulations are presented. We also compare with earlier results using Wilson quarks at heavier quark masses. The results on lattices with three flavors of dynamical quarks show effects of sea quarks on the hybrid propagators which probably result from coupling to two meson states. We extrapolate the quenched results to the physical light quark mass to allow comparison with experimental candidates for the 1^\ensuremath-+ hybrid meson. The lattice result remains somewhat heavier than the experimental result, although it may be consistent with the \ensuremathπ1(1600).