Colour-octet NLO QCD corrections to hadronic $χ_J$ decays

Details Colour-octet NLO QCD corrections to hadronic $χ_J$ decays Colour-octet NLO QCD corrections to hadronic $χ_J$ decays

1996-03-29

arxiv.org/abs/hep-ph/9603439v1

Phys.Lett.B380:159-164,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, latex, 3 figures

Scientific paper

10.1016/0370-2693(96)00459-5

In this paper we present a complete next-to-leading order QCD calculation of
the $\chi_J$ ($^3P_J\; ;J=0,1,2$) hadronic decay width. We include the NLO
colour-octet contribution, as defined in the Bodwin, Braaten and Lepage
formalism. We extract an estimate of the colour-octet parameter \height\ from
the charmonium decay data.

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