Hybrid meson decay from the lattice

C. Michael; P. Pennanen; UKQCD Collaboration: C. McNeile

Hybrid meson decay from the lattice

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arxiv hep-lat/0201006 v1 pith:XIWNKPVA submitted 2002-01-04 hep-lat hep-phnucl-th

UKQCD Collaboration: C. McNeile , C. Michael , P. Pennanen This is my paper · ORCID

classification hep-lathep-phnucl-th

keywords mesonquarkdiscussheavyhybriddecaydecayslattice

verification ladder T0 review T1 audit T2 compute T3 formal

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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 $\chi_b \eta$ 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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