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arXiv · hep-ph/9809260

Colour Octet effects in Quarkonium Physics

F. Maltoni
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Abstract

The importance of including colour octet contributions in describing decay and production of quarkonium states is briefly discussed for two cases : the radiative decays of the $Υ$ and the production of $J/ψ$ in the inclusive $B$ decays. It is shown how information on the non-perturbative matrix elements can be obtained by comparing the theoretical expressions computed at next-to-leading order in $α_s$ with the experimental data.

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F. Maltoni. 1998-09-04. Colour Octet effects in Quarkonium Physics. https://doi.org/10.1016/s0920-5632(99)00170-x

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