Surprises from Quarkonium Decay into Photons
高能物理 - 唯象学
2009-10-28 v1
摘要
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.
引用
@article{arxiv.hep-ph/9410394,
title = {Surprises from Quarkonium Decay into Photons},
author = {S. Catani and F. Hautmann},
journal= {arXiv preprint arXiv:hep-ph/9410394},
year = {2009}
}
备注
4 pages + 3 figures, uuencoded postscript, Cambridge preprint Cavendish-HEP-94/09