Orbitally excited and hybrid mesons from the lattice

Details Orbitally excited and hybrid mesons from the lattice Orbitally excited and hybrid mesons from the lattice

1996-05-21

arxiv.org/abs/hep-lat/9605025v2

Phys.Rev.D54:6997-7009,1996

Physics

High Energy Physics

High Energy Physics - Lattice

31 pages, LATEX, 8 postscript figures. Reference added

Scientific paper

10.1103/PhysRevD.54.6997

We discuss in general the construction of gauge-invariant non-local meson operators on the lattice. We use such operators to study the $P$- and $D$-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 $2^{+-}$.

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