Cronin effect for protons and pions in high-energy pA collisions

Pions and protons production cross sections are analyzed in proton–proton and proton–nucleus collisions at the RHIC energy at midrapidity. We employ the pQCD factorization scheme supplemented with the color-dipole formalism to investigate the Cronin effect. We calculate the broadening in the color-dipole approach for different centralities. Our main goal is to investigate, in a parameter-free manner within a unified framework, how much of the cronin effect for both pions and baryons comes from the transverse momentum broadening due to initial partons multi-scatterings. We conclude that final-state effects in pA collisions are important. Uncertainties in nuclear shadowing of various parton distributions and parton fragmentation functions are also discussed.

• Publication year

  2008

• Venue

  Nuclear Physics

• Publication date

  2008-10-27

• Fields of study

  Physics

• Identifiers
  DOI 10.1016/j.nuclphysa.2009.05.073arXiv 0810.4942
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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