A Caltech Library Service

Multiparticle correlations and higher order harmonics in pPb collisions at √s_(NN) = 8.16 TeV

Wang, Quan and Anderson, D. and Bornheim, A. and Lawhorn, J. M. and Newman, H. B. and Nguyen, T. Q. and Spiropulu, M. and Vlimant, J. R. and Wilkinson, R. and Xie, S. and Zhang, Z. and Zhu, R. Y. (2019) Multiparticle correlations and higher order harmonics in pPb collisions at √s_(NN) = 8.16 TeV. Nuclear Physics A, 982 . pp. 375-378. ISSN 0375-9474. doi:10.1016/j.nuclphysa.2018.09.064.

[img] PDF - Published Version
Creative Commons Attribution Non-commercial No Derivatives.


Use this Persistent URL to link to this item:


The elliptic and higher-order azimuthal anisotropy Fourier harmonics (vn) are obtained for pPb collisions at √s_(NN) = 8.16 TeV over a wide range of event multiplicities based on multiparticle correlations. The data were collected by the CMS experiment during the 2016 LHC run. A sample of peripheral PbPb collisions at √s_(NN) = 5.02 TeV covering a similar range of event multiplicities to the pPb results is also analyzed for comparison. The ratios of different harmonic moments are obtained for both v_2 and v_3 with high precision, which allows a direct comparison to theoretical predictions assuming a hydrodynamic evolution of the created medium with initial-state density fluctuations, particularly probing the non-Gaussian nature of initial-state fluctuations in small collision systems. The presented results provide crucial insights into the origin of collective long-range correlations observed in small collision systems.

Item Type:Article
Related URLs:
URLURL TypeDescription
Bornheim, A.0000-0002-0128-0871
Lawhorn, J. M.0000-0002-8597-9259
Newman, H. B.0000-0003-0964-1480
Nguyen, T. Q.0000-0003-3954-5131
Spiropulu, M.0000-0001-8172-7081
Xie, S.0000-0003-2509-5731
Zhang, Z.0000-0002-1630-0986
Zhu, R. Y.0000-0003-3091-7461
Additional Information:© 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license ( Available online 22 January 2019.
Subject Keywords:CMS; heavy ion; cumulant; flow; collectivity; small system; quark-gluon plasma
Record Number:CaltechAUTHORS:20190228-102305765
Persistent URL:
Official Citation:Quan Wang, Multiparticle correlations and higher order harmonics in pPb collisions at sNN=8.16TeV, Nuclear Physics A, Volume 982, 2019, Pages 375-378, ISSN 0375-9474, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93334
Deposited By: Tony Diaz
Deposited On:28 Feb 2019 18:36
Last Modified:16 Nov 2021 16:56

Repository Staff Only: item control page