Scale evolution of nuclear parton distributions

1998/02/18 by K. J. Eskola, K.J. Eskola, V. J. Kolhinen +3 · 4 citations
Physics and Astronomy · #Baryon #DGLAP #Deep inelastic scattering #High-Energy Particle Collisions Research #Momentum (technical analysis) #Particle physics theoretical and experimental studies #Parton #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Scale (ratio) #Structure function #hep-ph #nucl-th

paper · pdf · doi:10.1016/s0550-3213(98)00589-6

published as Nucl.Phys.B535:351-371,1998 · 26 pages, including 10 eps-figures

arxiv created 1998/02/18 · openalex publication_date 1998/12/01 · arxiv updated 2014/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Using the NMC and E665 nuclear structure function ratios F₂^A/F₂^D and F₂^A/F₂^C from deep inelastic lepton-nucleus collisions, and the E772 Drell--Yan dilepton cross sections from proton-nucleus collisions, and incorporating baryon number and momentum sum rules, we determine nuclear parton distributions at an initial scale Q₀². With these distributions, we study QCD scale evolution of nuclear parton densities. The emphasis is on small values of x, especially on scale dependence of nuclear shadowing. As the main result, we show that a consistent picture can be obtained within the leading twist DGLAP evolution, and in particular, that the calculated Q² dependence of F₂^Sn/F₂^C agrees very well with the recent NMC data.

Citations

• Asymptotic freedom in parton language
• A dynamical model for nuclear structure functions
• J/ψ suppression in hadron-nucleus collisions
• On the universality of the x and A dependence of the EMC effect and its relation to parton distributions in nuclei

Cited by

• Ξ− and distributions in hadron–nucleus interactions
• Limiting fragmentation from the color glass condensate
• Nuclear parton distributions at next to leading order
• Measurement of M_W⁺-M_W^- at LHC