Inclusive cross-sections for jet production in nucleus–nucleus collisions in the perturbative QCD pomeron model

2004/07/29 by M. A. Braun · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Jet (fluid) #Mechanics #Nuclear physics #Nucleus #Particle physics #Particle physics theoretical and experimental studies #Perturbative QCD #Physics #Pomeron #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ph

paper · pdf · doi:10.1016/j.physletb.2004.08.054

published in Physics Letters B 599(3-4), 269-277 (Elsevier BV) · 14 pages, 8 figures

arxiv created 2004/07/29 · openalex publication_date 2004/09/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Inclusive cross-sections for gluon jet production are studied numerically in the perturbative QCD pomeron model for central collisions of identical nuclei at high energies. Two forms for the inclusive cross-sections, with and without emission from the triple pomeron vertex, are compared. The difference was found to reduce to a numerical factor 0.8–0.9 for momenta below the saturation momentum Qs. Above Qs no difference was found at all. The gluon spectrum was found to be ∼A at momenta k below Qs and ∼A1.1 above it. At large k the spectrum goes like 1/k2.7–3.3 flattening with energy. The multiplicities turned out to be proportional to A with a good precision. Their absolute values are high and grow rapidly with energy in accordance with the high value of the BFKL intercept.

Citations

• Nucleus–nucleus scattering in perturbative QCD with Nc→∞
• Inclusive jet production off the nucleus in the perturbative QCD with Nc→∞
• Manifestations of high density QCD in the first RHIC data
• Saturation effects in deep inelastic scattering at lowQ2and its implications on diffraction
• BFKL pomeron in the next-to-leading approximation
• Inclusive gluon production in deep inelastic scattering at high parton density