Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at √sNN = 5.02 TeV at the CERN Large Hadron Collider
Abstract
This Letter reports on the first measurements of transverse momentum dependent flow angle Ψn and flow magnitude vn fluctuations determined using new four-particle correlators. The measurements are performed for various centralities in Pb–Pb collisions at a center-of-mass energy per nucleon pair of √SNN = 5.02 TeV with ALICE at the CERN Large Hadron Collider. Both flow angle and flow magnitude fluctuations are observed in the presented centrality ranges and are strongest in the most central collisions and for a transverse momentum pT>2GeV/c. Comparison with theoretical models, including iEBE-VISHNU, MUSIC, and AMPT, show that the measurements exhibit unique sensitivities to the initial state of heavy-ion collisions.
Main Author
Format
Articles
Research article
Published
2023
Series
Subjects
Publication in research information system
Publisher
American Physical Society (APS)
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202307074436Use this for linking
Review status
Peer reviewed
ISSN
2469-9985
DOI
https://doi.org/10.1103/PhysRevC.107.L051901
Language
English
Published in
Physical Review C
Citation
- ALICE Collaboration. (2023). Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at √sNN = 5.02 TeV at the CERN Large Hadron Collider. Physical Review C, 107, Article L051901. https://doi.org/10.1103/PhysRevC.107.L051901
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Funder(s)
Research Council of Finland
Research Council of Finland
European Commission
Funding program(s)
Centre of Excellence, AoF
Centre of Excellence, AoF
RIA Research and Innovation Action, H2020
Huippuyksikkörahoitus, SA
Huippuyksikkörahoitus, SA
RIA Research and Innovation Action, H2020
Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Education and Culture Executive Agency (EACEA). Neither the European Union nor EACEA can be held responsible for them.
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