Long range rapidity correlations as seen in the STAR experiment
T. Lappi, L. McLerran
TL;DR
This paper analyzes long-range rapidity correlations observed in the STAR experiment at RHIC, revealing unexpectedly strong correlations in central gold nucleus collisions that are unlikely due to impact parameter fluctuations.
Contribution
It provides a detailed analysis of the correlation matrix properties, accounting for the STAR experiment's methodology, and highlights the unexpectedly large correlation strength in central collisions.
Findings
Large correlation strength in central collisions at RHIC energies
Correlations unlikely caused by impact parameter fluctuations
Analysis method accounts for experimental procedure
Abstract
We analyze long range rapidity correlations observed in the STAR experiment at RHIC. Our goal is to extract properties of the two particle correlation matrix, accounting for the analysis method of the STAR experiment. We find a surprisingly large correlation strength for central collisions of gold nuclei at highest RHIC energies. We argue that such correlations cannot be the result of impact parameter fluctuations.
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