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Pion production in dAu collisions at RHIC energy

Authors
  • Lévai, P.1, 2
  • Papp, G.3
  • Barnaföldi, G. G.1, 4
  • Fai, G.4
  • 1 RMKI Research Institute for Particle and Nuclear Physics, PO Box 49, Budapest, 1525, Hungary , Budapest (Hungary)
  • 2 Columbia University, Department of Physics, 538 West 120th Street, New York, NY, 10027, USA , New York (United States)
  • 3 Eötvös University, Department for Theoretical Physics, Pázmány P. 1/A, Budapest, 1117, Hungary , Budapest (Hungary)
  • 4 Kent State University, Center for Nuclear Research, Department of Physics, Kent, OH, 44242, USA , Kent (United States)
Type
Published Article
Journal
The European Physical Journal Special Topics
Publisher
EDP Sciences
Publication Date
Mar 01, 2008
Volume
155
Issue
1
Pages
89–99
Identifiers
DOI: 10.1140/epjst/e2008-00592-3
Source
Springer Nature
Keywords
License
Yellow

Abstract

We present our results on neutral pion (π0) production in pp and dAu collisions at RHIC energy. Pion spectra are calculated in a next-to-leading order (NLO) perturbative QCD-based model. The model includes the transverse component of the initial parton distribution (“intrinsic kT”). We compare our results to the available experimental data from RHIC, and fit the data with high precision. The calculation tuned this way is repeated for the dAu collision, and used to investigate the interplay of shadowing and multiple scattering at RHIC. The centrality dependence of the nuclear modification factor shows a measurable difference between different shadowing parameterizations.

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