Photon - Jet Correlations and Constraints on Fragmentation Functions

Details Photon - Jet Correlations and Constraints on Fragmentation Functions Photon - Jet Correlations and Constraints on Fragmentation Functions

2009-03-27

arxiv.org/abs/0903.4834v1

Phys.Rev.D79:114024,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, 9 figures

Scientific paper

10.1103/PhysRevD.79.114024

We study the production of a large-pT photon in association with a jet in proton-proton collisions. We examine the sensitivity of the jet rapidity distribution to the gluon distribution function in the proton. We then assess the sensitivity of various photon + jet correlation observables to the photon fragmentation functions. We argue that RHIC data on photon-jet correlations can be used to constrain the photon fragmentation functions in a region which was barely accessible in LEP experiments.

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