Orbitally excited and hybrid mesons from the lattice

-wave mesons as well as hybrid mesons in quenched QCD, with quark masses near the strange quark mass. The resulting spectra are compared with experiment for the orbital excitations. For the states produced by gluonic excitations (hybrid mesons) we find evidence of mixing for non-exotic quantum numbers. We give predictions for masses of the spin-exotic hybrid mesons with

J~{PC}=1~{-+},\ 0~{+-}

, and

2~{+-}

.

12.38.Gc
11.15.Ha
fermion: lattice field theory
gauge field theory: SU(3)
approximation: quenching
meson: operator
operator: nonlocal
invariance: gauge
meson: interference
meson: hybrid

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