2002/03/02 by D. V. Bandurin, Bandurin, D. V., N. B. Skachkov +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/0203003
98 pages, 4 files with appendices
arxiv created 2002/03/02 · openalex publication_date 2002/03/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the effect of application of new set of cuts, proposed in our previous works, on the improvement of accuracy of the jet energy calibration with p p->photon+Jet+X process at Tevatron. Monte Carlo events produced by the PYTHIA 5.7 generator are used for this aim. The selection criteria for photon+Jet event samples that would provide a good balance of photon and jet transverse momenta and would allow to reduce the background are described. The distributions of these events over photon transverse momenta and jet pseudorapidity are presented. The features of photon+Jet events in the central calorimeter region of the D0 detector (etajet < 0.7) are exposed. The efficiency of the cuts used for background suppression is demonstrated. It is shown that the samples of photon+Jet events, gained with the cuts for the jet energy calibration, may have enough statistics for determining the gluon distribution inside a proton in the region of x < 10-3 and of Q2 by one order higher than that studied at HERA.