Multiparticle correlation studies in pPb collisions at √SNN=8.16 TeV
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PhysRevC.101.014912.pdf
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Author(s)
CMS Collaboration
Abercrombie, Daniel Robert
Allen, B.
Azzolini, Virginia
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
D'Alfonso, Mariarosaria
Gomez-Ceballos, Guillelmo
Date Issued
January 23, 2020
Journal
Physical Review C
Publisher
American Physical Society
Citation
CMS Collaboration (Sirunyan, A., et al.), "Multiparticle correlation studies in pPb collisions at √SNN=8.16 TeV." Physical Review C 101 (Jan. 2020): no. 014912 doi http://dx.doi.org/10.1103/PhysRevC.101.014912 ©2020 Author(s)
Version
Author's final manuscript
Abstract
The second- and third-order azimuthal anisotropy Fourier harmonics of charged particles produced in pPb collisions, at √SNN=8.16TeV, are studied over a wide range of event multiplicities. Multiparticle correlations are used to isolate global properties stemming from the collision overlap geometry. The second-order “elliptic” harmonic moment is obtained with high precision through four-, six-, and eight-particle correlations and, for the first time, the third-order “triangular” harmonic moment is studied using four-particle correlations. A sample of peripheral PbPb collisions at √NN=5.02TeV that covers a similar range of event multiplicities as the pPb results is also analyzed. Model calculations of initial-state fluctuations in pPb and PbPb collisions can be directly compared to the high-precision experimental results. This work provides new insight into the fluctuation-driven origin of the v[subscript 3] coefficients in pPb and PbPb collisions, and into the dominating overall collision geometry in PbPb collisions at the earliest stages of heavy ion interactions.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 3.0 unported license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevC.101.014912
