English

Stopping in central Pb + Pb collisions at SPS energies and beyond

High Energy Physics - Phenomenology 2011-06-10 v2 Nuclear Theory

Abstract

We investigate stopping and baryon transport in central relativistic Pb + Pb and Au + Au collisions. At energies reached at the CERN Super Proton Synchrotron [sqrt(s_NN) = 6.3-17.3 GeV] and at RHIC (62.4 GeV), we determine the fragmentation-peak positions from the data. The resulting linear growth of the peak positions with beam rapidity is in agreement with our results from a QCD-based approach that accounts for gluon saturation. No discontinuities in the net-proton fragmentation peak positions occur in the expected transition region from partons to hadrons at 6-10 GeV.

Keywords

Cite

@article{arxiv.1102.3134,
  title  = {Stopping in central Pb + Pb collisions at SPS energies and beyond},
  author = {Yacine Mehtar-Tani and Georg Wolschin},
  journal= {arXiv preprint arXiv:1102.3134},
  year   = {2011}
}

Comments

5 pages, 3 figures, 1 table. Figures updated, table shortened, 1 reference added