TY - JOUR
T1 - Lattice calculation of [Formula Presented] hybrid mesons with improved Kogut-Susskind fermions
AU - Bernard, C.
AU - Burch, T.
AU - Gregory, E. B.
AU - Toussaint, D.
AU - DeTar, C.
AU - Osborn, J.
AU - Gottlieb, Steven
AU - Heller, U. M.
AU - Sugar, R.
PY - 2003
Y1 - 2003
N2 - We report on a lattice determination of the mass of the exotic [Formula Presented] 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 [Formula Presented] hybrid meson. The lattice result remains somewhat heavier than the experimental result, although it may be consistent with the [Formula Presented]
AB - We report on a lattice determination of the mass of the exotic [Formula Presented] 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 [Formula Presented] hybrid meson. The lattice result remains somewhat heavier than the experimental result, although it may be consistent with the [Formula Presented]
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U2 - 10.1103/PhysRevD.68.074505
DO - 10.1103/PhysRevD.68.074505
M3 - Article
AN - SCOPUS:84892691834
SN - 1550-7998
VL - 68
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
ER -