Pion-Exchange and Fermi-Motion Effects on the Proton-Deuteron Drell-Yan Process

Abstract

Within a nuclear model that the deuteron has NN and πNN components, we derive convolution formula for investigating the Drell-Yan process in proton-deuteron (pd) reactions. The contribution from the πNN component is expressed in terms of a pion momentum distribution that depends sensitively on the πNN form factor. With a πNN form factor determined by fitting the πN scattering data up to invariant mass W = 1.3 GeV, we find that the pion-exchange and nucleon Fermi-motion effects can change significantly the ratios between the proton-deuteron and proton-proton Drell-Yan cross sections, R_{pd/pp} = σ^{pd}/(2σ^{pp}), in the region where the partons emitted from the target deuteron are in the Bjorken x_2 > 0.4 region. The calculated ratios R_{pd/pp} at 800 GeV agree with the available data. Predictions at 120 GeV for analyzing the forthcoming data from Fermilab are presented.

arXiv comment27 pages, 10 figures. A couple of new numerical results are added. arXiv admin note: substantial text overlap with arXiv:1106.5564

References in corpus (20)

• An accurate nucleon-nucleon potential with charge-independence breaking
• Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions
• Improved Parton Distributions from Global Analysis of Recent Deep Inelastic Scattering and Inclusive Jet Data
• Improved Measurement of the $\bar{d}/\bar{u}$ Asymmetry in the Nucleon Sea
• Measurement of the Light Antiquark Flavor Asymmetry in the Nucleon Sea
• Flavor Asymmetry of Antiquark Distributions in the Nucleon
• The Flavor Asymmetry of the Light Quark Sea from Semi-inclusive Deep-inelastic Scattering
• Parton distributions: a study of the new HERA data, ${\alpha }_s$, the gluon and $p\bar{p}$ jet production
• Parton energy loss limits and shadowing in Drell-Yan dimuon production
• The pion parton distribution function in the valence region
• dbar/ubar Asymmetry and the Origin of the Nucleon Sea
• Dynamics of Light Antiquarks in the Proton
• Isovector unpolarized quark distribution in the nucleon in the large-N_c limit
• The Nucleon's Virtual Meson Cloud and Deep Inelastic Lepton Scattering
• On the Flavor Structure of the Constituent Quark
• Do the E866 Drell Yan data change our picture of the chiral structure of the nucleon ?
• The Validity of Charge Symmetry for Parton Distributions
• Extraction of P11 resonances from pi N data
• Omega Meson Cloud and the Proton's Light Anti-Quark Distribution
• Flavor Asymmetry of the Nucleon Sea: Consequences for Dilepton Production

Cited by in corpus (6)

• The Asymmetry of Antimatter in the Proton
• The Sea of Quarks and Antiquarks in the Nucleon: a Review
• Nuclear effects in the proton-deuteron Drell-Yan process
• Measurement of flavor asymmetry of light-quark sea in the proton with Drell-Yan dimuon production in $p+p$ and $p+d$ collisions at 120 GeV
• Large-x connections of nuclear and high-energy physics
• Flavor asymmetry from the non-perturbative nucleon sea