Decay width of light quark hybrid meson from the lattice

C. McNeile and C. Michael
Phys. Rev. D 73, 074506 – Published 17 April 2006

Abstract

Lattice QCD with Nf=2 flavours of sea quark is used to explore the spectrum and decay of a JPC=1+ spin-exotic hybrid meson. We test lattice determination of S-wave decay amplitudes at threshold using b1πω where agreement with data is found. We find a hybrid meson state at 2.2(2) GeV with a partial width to πb1 of 400(120) MeV and to πf1 of 90(60) MeV.

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  • Received 7 March 2006

DOI:https://doi.org/10.1103/PhysRevD.73.074506

©2006 American Physical Society

Authors & Affiliations

C. McNeile and C. Michael

  • Theoretical Physics Division, Dept. Math. Sci., University of Liverpool, Liverpool L69 7ZL, United Kingdom

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Vol. 73, Iss. 7 — 1 April 2006

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