Wang, Q;
Sirunyan, AM;
Tumasyan, A;
Adam, W;
Ambrogi, F;
Asilar, E;
Bergauer, T;
... Woods, N; + view all
(2019)
Multiparticle correlations and higher order harmonics in pPb collisions at root s(NN)=8.16 TeV.
Nuclear Physics A
, 982
pp. 375-378.
10.1016/j.nuclphysa.2018.09.064.
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Abstract
The elliptic and higher-order azimuthal anisotropy Fourier harmonics (vn) are obtained for pPb collisions at √sNN = 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 √sNN = 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 v2 and v3 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.
| Type: | Article |
|---|---|
| Title: | Multiparticle correlations and higher order harmonics in pPb collisions at root s(NN)=8.16 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.nuclphysa.2018.09.064 |
| Publisher version: | https://doi.org/10.1016/j.nuclphysa.2018.09.064 |
| Language: | English |
| Additional information: | This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
| Keywords: | CMS, heavy ion, cumulant, flow, collectivity, small system, quark-gluon plasma |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10070697 |
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