The shape of the correlation function
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/d8338a77-2095-48b2-80a6-08f9614573dc
- author
- Cimerman, Jakub ; Plumberg, Christopher LU and Tomášik, Boris
- organization
- publishing date
- 2021-04-15
- 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}}, }