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arXiv · hep-lat/0201006

Hybrid meson decay from the lattice

UKQCD Collaboration·C. McNeile·C. Michael·P. Pennanen
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Abstract

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 $χ_b η$ and $χ_b S$ 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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UKQCD Collaboration, C. McNeile, C. Michael, P. Pennanen. 2002-01-04. Hybrid meson decay from the lattice. https://doi.org/10.1103/physrevd.65.094505

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