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Multipion Bose-Einstein correlations in pp,p -Pb, and Pb-Pb collisions at energies available at the CERN Large Hadron Collider

Adam, J.
•
Adamová, D.
•
Aggarwal, M. M.
altro
Zyzak, M.
2016
  • journal article

Periodico
PHYSICAL REVIEW C
Abstract
Three- and four-pion Bose-Einstein correlations are presented in pp, p-Pb, and Pb-Pb collisions at the LHC. We compare our measured four-pion correlations to the expectation derived from two- and three-pion measurements. Such a comparison provides a method to search for coherent pion emission. We also present mixed-charge correlations in order to demonstrate the effectiveness of several analysis procedures such as Coulomb corrections. Same-charge four-pion correlations in pp and p-Pb appear consistent with the expectations from three-pion measurements. However, the presence of non-negligible background correlations in both systems prevent a con- clusive statement. In Pb-Pb collisions, we observe a significant suppression of three- and four-pion Bose-Einstein correlations compared to expectations from two-pion measurements. There appears to be no centrality dependence of the suppression within the 0%–50% centrality interval. The origin of the suppression is not clear. However, by postulating either coherent pion emission or large multibody Coulomb effects, the suppression may be explained.
DOI
10.1103/PhysRevC.93.054908
WOS
WOS:000376253800002
Archivio
http://hdl.handle.net/11368/2880489
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84971510372
http://journals.aps.org/prc/abstract/10.1103/PhysRevC.93.054908
Diritti
open access
FVG url
https://arts.units.it/bitstream/11368/2880489/2/PhysRevC.93.054908.pdf
Soggetti
  • Nuclear and High Ener...

Scopus© citazioni
25
Data di acquisizione
Jun 15, 2022
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Web of Science© citazioni
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Data di acquisizione
Mar 27, 2024
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Data di acquisizione
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