Surprises from Quarkonium Decay into Photons

Preprint

27 October 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9410394

Abstract

The perturbative QCD approach to quarkonium decay into a photon and hadrons is reconsidered. It is shown that a consistent treatment within perturbative QCD calls for the introduction of a fragmentation contribution which has been neglected so far. The ensuing phenomenological implications are discussed, and, in particular, the possibility of measuring the gluon fragmentation function of the photon is addressed. *To appear in the proceedings of the workshop QCD94, Montpellier, July '94.

Keywords

DECAY INTO PHOTONS
PERTURBATIVE QCD
QUARKONIUM DECAY
FRAGMENTATION
QCD APPROACH
PHOTON

All Related Versions

Version 1, 1994-10-27, ArXiv
Published version: Nuclear Physics B - Proceedings Supplements, 39 (2-3), 359.

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