English

Effects of Dense Matter on Hadron Production in Heavy-Ion Collisions

Nuclear Theory 2007-05-23 v1 Condensed Matter High Energy Physics - Phenomenology

Abstract

The intrinsic transverse momentum distribution of partons in the nucleon can be used to explain a large amount of high-pTp_T hadron and photon production data in high-energy nucleon-nucleon collisions at energies s20\sqrt{s} \approx 20 to 1800 GeV. However, proton-nucleus experiments at energies 30\approx 30 GeV show an extra enhancement (Cronin effect) in the yield of photons and mesons compared to a simple extrapolation of the proton-proton data. This enhancement is due to the effect of the dense hadronic matter encountered by the projectile proton in the nuclear environment. We discuss the origin and the properties of the nuclear enhancement.

Keywords

Cite

@article{arxiv.nucl-th/0001053,
  title  = {Effects of Dense Matter on Hadron Production in Heavy-Ion Collisions},
  author = {Gabor Papp and Gergely Barnafoeldi and George Fai and Peter Levai and Yi Zhang},
  journal= {arXiv preprint arXiv:nucl-th/0001053},
  year   = {2007}
}

Comments

5 pages, LaTeX with one EPS figure; Contribution to the 'International Workshop XXVIII on Gross Properties of Nuclei and Nuclear Excitations', Hirschegg, Austria, 16-22.01.2000