On the possibility of measuring the gluon distribution in proton with "photon+jet" events at LHC

2002/10/02 by D. V. Bandurin, D. Bandurin, Bandurin, D. +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.48550/arxiv.hep-ex/0210004

20 pages, 2 figures

openalex publication_date 2002/10/02 · arxiv created 2004/01/14 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The number of events suitable for a determination of the gluon distribution function g(x,Q²) in a proton at the LHC for various intervals of x and Q² are estimated. The contributions of main background sources to ``direct photon+jet'' production processes are studied. The values of discrimination powers between quark and gluon jets as well as between a single photon and the products of pi⁰, eta, K⁰_s mesons decaying through the neutral channels are applied to estimate the final contributions of various event types to the "photon+jet" production in different intervals of x and Q². Monte Carlo events generated by help of the PYTHIA 6.1 generator are used for this analysis.

Citations

• On the application of 'photon+jet' events for setting the absolute jet energy scale and determining the gluon distribution at the LHC

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