Systematics of mid-rapidity K-/pi ratio in heavy-ion collisions
Nuclear Experiment
2008-11-26 v2 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
It is observed that K-/pi in A+A and possibly p+p and pbar+p collisions follows an interesting systematic in omega, the pion transverse energy per unit of rapidity and transverse overlap area. The systematics show a linear increase of K-/pi with omega in the AGS and SPS energy regime and a saturation at RHIC energy. The systematics indicate that omega might be the relevant variable underlying K-/pi. At high energy, the omega variable is related to the gluon saturation scale in high density QCD, and perhaps to the initial energy density in the Bjorken picture.
Cite
@article{arxiv.nucl-ex/0201018,
title = {Systematics of mid-rapidity K-/pi ratio in heavy-ion collisions},
author = {Fuqiang Wang},
journal= {arXiv preprint arXiv:nucl-ex/0201018},
year = {2008}
}
Comments
4 pages, 3 figures. SQM-2001 proceedings