Nuclear Effects in the Deuteron and Constraints on the d/u Ratio

Abstract

We present a detailed study of nuclear corrections in the deuteron (D) by performing an analysis of data from deep inelastic scattering off proton and D, dilepton pair production in $pp$ and pD interactions, and W^+- and Z boson production in pp and p pbar collisions. In particular, we discuss the determination of the off-shell function describing the modification of the parton distribution functions in bound nucleons in the context of global QCD fits. Our results are consistent with the ones obtained independently from the study of deep inelastic scattering data off heavy nuclei with $A\ge 4$, further confirming the universality of the off-shell function. We also study the sensitivity to the modeling of the deuteron wave function. As an important application we discuss the impact of nuclear corrections to the deuteron on the determination of the d quark distribution.

28 pages, 14 figures (typos fixed, text editing, appendix added)

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• Nuclear effects in the deuteron and global QCD analyses
• Application of the rescaling model at small Bjorken $x$ values
• The gluon and charm content of the deuteron
• A Novel Approach to Neutrino-Hydrogen Measurements
• What does kinematical target mass sensitivity in DIS reveal about hadron structure?
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• High-energy neutrino deep inelastic scattering cross sections
• Deep-inelastic and quasielastic electron scattering from $A=3$ nuclei
• Light quark and antiquark constraints from new electroweak data
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• Antishadowing in the rescaling model at x ~ 0.1
• Probing Free Nucleons with (Anti)neutrinos
• Systematic uncertainties from higher-twist corrections in DIS at large x
• Extraction of the neutron F2 structure function from inclusive proton and deuteron deep-inelastic scattering data
• EMC effect at small Bjorken x values
• Examining the EMC Effect using the $F_2^n$ neutron structure function
• Nuclear effects in the deuteron in the resonance and deep-inelastic scattering region
• Precision Measurements of Fundamental Interactions with (Anti)Neutrinos
• Hybrid model of proton structure functions
• QCD analysis of valence structure functions using deep inelastic lepton-nucleon scattering