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The shape of the correlation function

Cimerman, Jakub ; Plumberg, Christopher LU and Tomášik, Boris (2021) 40th International Conference on High Energy Physics, ICHEP 2020 In Proceedings of Science 390.
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 Lévy-stable distributions. We show that the Lévy index may deviate substantially from 2 due to non-critical effects such as resonance decays, event-by-event fluctuations and functional dependence on QLI or similar. We also study the corrections including the first-order Lévy expansion.

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author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Proceedings of Science : 40th International Conference on High Energy physics (ICHEP2020) - 40th International Conference on High Energy physics (ICHEP2020)
series title
Proceedings of Science
volume
390
article number
538
conference name
40th International Conference on High Energy Physics, ICHEP 2020
conference location
Virtual, Prague, Czech Republic
conference dates
2020-07-28 - 2020-08-06
external identifiers
  • scopus:85105481927
ISSN
1824-8039
language
English
LU publication?
yes
id
d8338a77-2095-48b2-80a6-08f9614573dc
date added to LUP
2021-06-01 09:45:49
date last changed
2024-04-20 06:46:09
@inproceedings{d8338a77-2095-48b2-80a6-08f9614573dc,
  abstract     = {{<p>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 Lévy-stable distributions. We show that the Lévy index may deviate substantially from 2 due to non-critical effects such as resonance decays, event-by-event fluctuations and functional dependence on Q<sub>LI</sub> or similar. We also study the corrections including the first-order Lévy expansion.</p>}},
  author       = {{Cimerman, Jakub and Plumberg, Christopher and Tomášik, Boris}},
  booktitle    = {{Proceedings of Science : 40th International Conference on High Energy physics (ICHEP2020)}},
  issn         = {{1824-8039}},
  language     = {{eng}},
  month        = {{04}},
  series       = {{Proceedings of Science}},
  title        = {{The shape of the correlation function}},
  volume       = {{390}},
  year         = {{2021}},
}