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Associated production ofJ ψand photon at largepTand polarised gluon distributions

Authors
Journal
Physics Letters B
0370-2693
Publisher
Elsevier
Publication Date
Volume
289
Identifiers
DOI: 10.1016/0370-2693(92)91245-5

Abstract

Abstract We consider the process p+p→ J ψ+γ+ X , with both initial protons polarised. We compute the helicity amplitudes for this process and use these to study the cross-section asymmetry. The asymmetry is an excellent measure of the polarised gluon distribution.

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