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High Energy Physics - Phenomenology

arXiv:hep-ph/0506232 (hep-ph)
[Submitted on 23 Jun 2005]

Title:Parton Ladder Splitting and the Rapidity Dependence of Transverse Momentum Spectra in Deuteron-Gold Collisions at RHIC

Authors:Klaus Werner (SUBATECH, Univ. de Nantes -- IN2P3/CNRS-- EMN, Nantes, France), Fu-Ming Liu (Central China Normal University, Institute of Particle Physics, Wuhan, China), Tanguy Pierog (Forschungszentrum Karlsruhe, Institut f. Kernphysik, Karlsruhe, Germany)
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Abstract: We present a phenomenological approach (EPOS), based on the parton model, but going much beyond, and try to understand proton-proton and deuteron-gold collisions, in particular the transverse momentum results from all the four RHIC experiments. It turns out that elastic and inelastic parton ladder splitting is the key issue. Elastic splitting is in fact related to screening and saturation, but much more important is the inelastic contribution, being crucial to understand the data. We investigate in detail the rapidity dependence of nuclear effects, which is actually relatively weak in the model, in perfect agreement with the data, if the latter ones are interpreted correctly.
Comments: 39 pages, 28 figures
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:hep-ph/0506232
  (or arXiv:hep-ph/0506232v1 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0506232
Journal reference: Phys.Rev. C74 (2006) 044902
Related DOI: https://doi.org/10.1103/PhysRevC.74.044902

Submission history

From: Klaus Werner [view email]
[v1] Thu, 23 Jun 2005 13:20:01 UTC (295 KB)
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