Baryon stopping and saturation physics in relativistic collisions
Abstract
We investigate baryon transport in relativistic heavy-ion collisions at energies reached at the CERN Super Proton Synchrotron, BNL Relativistic Heavy-Ion Collider (RHIC), and CERN LHC in the model of saturation. An analytical scaling law is derived within the color glass condensate framework based on small-coupling QCD. Transverse momentum spectra, net-baryon rapidity distributions and their energy, mass and centrality dependences are well described. In a comparison with RHIC data in Au + Au collisions at sqrt (s_NN) = 62.4 GeV and 200 GeV, the gradual approach to the gluon saturation regime is investigated, and limits for the saturation-scale exponent are determined. Predictions for net-baryon rapidity spectra and the mean rapidity loss in central Pb + Pb collisions at LHC energies of sqrt (s_NN) = 5.52 TeV are made.
Cite
@article{arxiv.0907.5444,
title = {Baryon stopping and saturation physics in relativistic collisions},
author = {Yacine Mehtar-Tani and Georg Wolschin},
journal= {arXiv preprint arXiv:0907.5444},
year = {2015}
}
Comments
11 pages, 10 Figures; improved figure inscriptions, corrected typos, minor changes in text/title