Photon-jet correlations and constraints on fragmentation functions

Journal Article · Mon Jun 01 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.114024· OSTI ID:21296459

Belghobsi, Z ^[1]; Fontannaz, M ^[2]; Guillet, J -Ph; Pilon, E; Werlen, M ^[3]; Heinrich, G ^[4]

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1. Laboratoire de Physique Theorique, LPTh, Universite de Jijel BP 98 Ouled Aissa, 18000 Jijel (Algeria)
2. Laboratoire de Physique Theorique, UMR 8627 du CNRS, Universite Paris XI, Batiment 210, 91405 Orsay Cedex (France)
3. LAPTH, Universite de Savoie, CNRS, BP. 110, F-74941 Annecy-le-Vieux Cedex (France)
4. IPPP, Department of Physics, University of Durham, Durham DH1 3LE (United Kingdom)

We study the production of a large-p{sub T} 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.

• OSTI ID: 21296459
• Journal Information: Physical Review. D, Particles Fields, Vol. 79, Issue 11; Other Information: DOI: 10.1103/PhysRevD.79.114024; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BROOKHAVEN RHIC
CORRELATIONS
DISTRIBUTION
DISTRIBUTION FUNCTIONS
FRAGMENTATION
GLUONS
LEP STORAGE RINGS
PARTICLE PRODUCTION
PARTICLE RAPIDITY
PHOTONS
PROTON-PROTON INTERACTIONS
PROTONS
SENSITIVITY