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Quarkonium Decays and Production in NRQCD

Fabio Maltoni
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Abstract

Some examples of the most recent applications of the NRQCD factorization approach to quarkonium phenomenology are presented. In the first part of the talk the NLO calculations for $\chicj$ and $Υ$ decays rates are compared to the data and the results critically analyzed. In the second part, I show how information on the non-perturbative matrix elements can be extracted from the hadronic fixed-target experiments and eventually used to test their universality.

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Fabio Maltoni. 2000-07-02. Quarkonium Decays and Production in NRQCD. https://arxiv.org/abs/hep-ph/0007003

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