Hybrid meson decay from the lattice

Details Hybrid meson decay from the lattice Hybrid meson decay from the lattice

2002-01-04

arxiv.org/abs/hep-lat/0201006v1

Phys.Rev.D65:094505,2002

Physics

High Energy Physics

High Energy Physics - Lattice

18 pages, LATEX, 3 ps figures

Scientific paper

10.1103/PhysRevD.65.094505

We discuss the allowed decays of a hybrid meson in the heavy quark limit. We deduce that an important decay will be into a heavy quark non-hybrid state and a light quark meson, in other words, the de-excitation of an excited gluonic string by emission of a light quark-antiquark pair. We discuss the study of hadronic decays from the lattice in the heavy quark limit and apply this approach to explore the transitions from a spin-exotic hybrid to $\chi_b \eta$ and $\chi_b S$ where $S$ is a scalar meson. We obtain a signal for the transition emitting a scalar meson and we discuss the phenomenological implications.

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