Averaging and the shape of the correlation function
(2019) In Universe 5(6).- Abstract
A brief pedagogical introduction to correlation femtoscopy is given. We then focus on the shape of the correlation function and discuss the possible reasons for its departure from the Gaussian form and better reproduction with a Lévy stable distribution. With the help of Monte Carlo simulations based on asymmetric extension of the Blast-Wave model with resonances we demonstrate possible influence of averaging over many events and integrating over wide momentum bins on the shape of the correlation function. We also show that the shape is strongly influenced by the use of the one-dimensional parametrisation in the qinv variable.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/730ee140-66f4-4efb-adef-fd042151b2d6
- author
- Tomášik, Boris ; Cimerman, Jakub and Plumberg, Christopher LU
- organization
- publishing date
- 2019-06
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Correlation femtoscopy, Event-by-event fluctuations, Heavy-ion collisions, Lévy stable parametrisation
- in
- Universe
- volume
- 5
- issue
- 6
- article number
- 148
- publisher
- MDPI AG
- external identifiers
-
- scopus:85067652195
- ISSN
- 2218-1997
- DOI
- 10.3390/universe5060148
- language
- English
- LU publication?
- yes
- id
- 730ee140-66f4-4efb-adef-fd042151b2d6
- date added to LUP
- 2019-07-05 13:30:05
- date last changed
- 2024-04-16 16:44:31
@article{730ee140-66f4-4efb-adef-fd042151b2d6, abstract = {{<p>A brief pedagogical introduction to correlation femtoscopy is given. We then focus on the shape of the correlation function and discuss the possible reasons for its departure from the Gaussian form and better reproduction with a Lévy stable distribution. With the help of Monte Carlo simulations based on asymmetric extension of the Blast-Wave model with resonances we demonstrate possible influence of averaging over many events and integrating over wide momentum bins on the shape of the correlation function. We also show that the shape is strongly influenced by the use of the one-dimensional parametrisation in the q<sub>inv</sub> variable.</p>}}, author = {{Tomášik, Boris and Cimerman, Jakub and Plumberg, Christopher}}, issn = {{2218-1997}}, keywords = {{Correlation femtoscopy; Event-by-event fluctuations; Heavy-ion collisions; Lévy stable parametrisation}}, language = {{eng}}, number = {{6}}, publisher = {{MDPI AG}}, series = {{Universe}}, title = {{Averaging and the shape of the correlation function}}, url = {{http://dx.doi.org/10.3390/universe5060148}}, doi = {{10.3390/universe5060148}}, volume = {{5}}, year = {{2019}}, }