Hidden asymmetry and long range rapidity correlations
High Energy Physics - Phenomenology
2015-05-28 v2 Nuclear Theory
Abstract
Interpretation of long-range rapidity correlations in terms of the fluctuating rapidity density distribution of the system created in high-energy collisions is proposed. When applied to recent data of the STAR coll., it shows a substantial asymmetric component in the shape of this system in central Au-Au collisions, implying that boost invariance is violated on the event-by-event basis even at central rapidity. This effect may seriously influence the hydrodynamic expansion of the system.
Keywords
Cite
@article{arxiv.1107.1215,
title = {Hidden asymmetry and long range rapidity correlations},
author = {A. Bialas and A. Bzdak and K. Zalewski},
journal= {arXiv preprint arXiv:1107.1215},
year = {2015}
}
Comments
9 pages, new section 5 with comments, to appear in Phys. Lett. B