Towards a determination of the low x gluon via exclusive J/ production
Abstract
We discuss how the stability of the theoretical prediction for exclusive J/ photoproduction has been improved through a systematic taming of the known MS coefficient functions by accounting for a formally power suppressed, but numerically significant, correction encoded within a Q0 cut. The phenomenological implications of this will be emphasised meaning, ultimately, the possibility to include the exclusive data into a global fitter framework to provide constraints on the small x gluon.
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