Nuclear effects in the Drell-Yan process. Metadata

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Title

  • Main Title Nuclear effects in the Drell-Yan process.

Creator

  • Author: Raufeisen, J. (Jorg)
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Los Alamos National Laboratory
    Place of Publication: United States

Date

  • Creation: 2002-01-01

Language

  • English

Description

  • Content Description: In the target rest frame and at high energies, Drell-Yan (DY) dilepton production looks like bremsstrahlung of massive photons, rather than parton annihilation. The projectile quark is decomposed into a series of Fock states. Configurations with fixed transverse separations in impact parameter space are interaction eigenstates for p p scattering. The DY cross section can then be expressed in terms of the same color dipole cross section as DIS. We compare calculations in this dipole approach with E772 data and with next-to-leading order parton model calculations. This approach is especially suitable to describe nuclear effects, since it allows one to apply Glauber multiple scattering theory. We go beyond the Glauber eikonal approximation by taking into account transitions between states, which would be eigenstates for a proton target. We calculate nuclear shadowing at large Feynman-x{sub F} for DY in proton-nucleus collisions and compare to E772 data. Nuclear effects on the transverse momentum distribution are also investigated.
  • Physical Description: 8 p.

Subject

  • Keyword: Protons
  • Keyword: Bremsstrahlung
  • Keyword: Distribution
  • Keyword: Targets
  • Keyword: Photons
  • Keyword: Multiple Scattering
  • Keyword: Projectiles
  • Keyword: Transverse Momentum
  • Keyword: Quarks
  • Keyword: Color
  • Keyword: Production
  • Keyword: Scattering
  • Keyword: Annihilation
  • Keyword: Eikonal Approximation
  • Keyword: Cross Sections
  • STI Subject Categories: 72 Physics Of Elementary Particles And Fields
  • Keyword: Dipoles
  • STI Subject Categories: 73 Nuclear Physics And Radiation Physics
  • Keyword: Impact Parameter
  • Keyword: Eigenstates

Source

  • Conference: Submitted to: Proceedings of the Pan-American Advanced Study Institute 2002

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: LA-UR-02-1823
  • Office of Scientific & Technical Information Report Number: 976141
  • Archival Resource Key: ark:/67531/metadc931518
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