The Shape of the Correlation Function
Nuclear Theory
2021-01-08 v2 High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
The correlation function measured in ultrarelativistic nuclear collisions is strongly non-Gaussian. Using two different models we study which effects can influence its shape and how much. In particular, we focus on the parametrizations expressed with the help of L\'evy-stable distributions. We show that the L\'evy index may deviate substantially from 2 due to non-critical effects such as resonance decays, event-by-event fluctuations and functional dependence on or similar. We also study the corrections including the first-order L\'evy expansion.
Keywords
Cite
@article{arxiv.2012.04412,
title = {The Shape of the Correlation Function},
author = {Jakub Cimerman and Chrisopher Plumberg and Boris Tomášik},
journal= {arXiv preprint arXiv:2012.04412},
year = {2021}
}
Comments
Proceedings of ICHEP 2020, July 28-August 6, Prague, Czech Republic (virtual meeting). 6 pages. arXiv admin note: substantial text overlap with arXiv:1909.00278