Hybrid Meson Spectrum from the FLIC action

Details Hybrid Meson Spectrum from the FLIC action Hybrid Meson Spectrum from the FLIC action

2004-02-16

arxiv.org/abs/hep-lat/0402016v1

Nucl.Phys.Proc.Suppl.128:221-226,2004

Physics

High Energy Physics

High Energy Physics - Lattice

Talk given by A.G Williams at Workshop on Lattice Hadron Physics, Cairns, Queensland, Australia, July 2003

Scientific paper

10.1016/S0920-5632(03)02481-2

The spectral properties of hybrid meson interpolating fields are investigated. The quantum numbers of the meson are carried by smeared-source fermion operators and highly-improved chromo-electric and -magnetic field operators composed with APE-smeared links. The effective masses of standard and hybrid operators indicate that the ground state meson is effectively isolated using both standard and hybrid interpolating fields. Focus is placed on interpolating fields in which the large spinor components of the quark and antiquark fields are merged. In particular, the effective mass of the exotic $1^{-+}$ meson is reported. Further, we report some values for excited mesonic states using a variational process.

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