Event activity measurements and mid-rapidity correlations in 200 GeV p+Au collisions at STAR
Abstract
These proceedings report preliminary measurements of correlations between mid-rapidity charged tracks and high-rapidity event activity (EA) at STAR for p+Au collisions taken in 2015. These correlations are intriguing because they inform the current debate over use of the Glauber model in `small' systems (here meaning p+A or d+A and denoted as `s+A') and have implications for calculating nuclear modification and quenching observables in these systems. The results support concerns about centrality binning in p+Au collisions, and as such motivate using ratios of semi-inclusive, as opposed to fully inclusive, jet spectra to look for jet enhancement or suppression.
Cite
@article{arxiv.1901.03265,
title = {Event activity measurements and mid-rapidity correlations in 200 GeV p+Au collisions at STAR},
author = {David Stewart},
journal= {arXiv preprint arXiv:1901.03265},
year = {2025}
}
Comments
Presented at Hot Quarks 2018 - Workshop for young scientists on the physics of ultrarelativistic nucleus-nucleus collisions, Texel, The Netherlands, September 7-14 2018