Lattice calculation of [Formula Presented] hybrid mesons with improved Kogut-Susskind fermions

C. Bernard; T. Burch; E. B. Gregory; D. Toussaint; C. DeTar; J. Osborn; Steven Gottlieb; U. M. Heller; R. Sugar

doi:10.1103/PhysRevD.68.074505

Lattice calculation of [Formula Presented] hybrid mesons with improved Kogut-Susskind fermions

C. Bernard, T. Burch, E. B. Gregory, D. Toussaint, C. DeTar, J. Osborn, Steven Gottlieb, U. M. Heller, R. Sugar

Physics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

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]

Original language	English (US)
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	68
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.68.074505
State	Published - 2003

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.68.074505

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Lattice calculation of [Formula Presented] hybrid mesons with improved Kogut-Susskind fermions. / Bernard, C.; Burch, T.; Gregory, E. B.; Toussaint, D.; DeTar, C.; Osborn, J.; Gottlieb, Steven; Heller, U. M.; Sugar, R.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 68, No. 7, 2003.

Research output: Contribution to journal › Article › peer-review

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abstract = "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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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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Lattice calculation of [Formula Presented] hybrid mesons with improved Kogut-Susskind fermions

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