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Multiparticle correlations and higher order harmonics in pPb collisions at $\sqrt{s_{NN}}=$ 8.16TeV
The elliptic and higher-order azimuthal anisotropy Fourier harmonics ( v n ) are obtained for pPb collisions at sNN=8.16TeV 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 PbP...
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Lenguaje: | eng |
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2019
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Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysa.2018.09.064 http://cds.cern.ch/record/2800922 |
_version_ | 1780972665610174464 |
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author | Wang, Quan |
author_facet | Wang, Quan |
author_sort | Wang, Quan |
collection | CERN |
description | The elliptic and higher-order azimuthal anisotropy Fourier harmonics ( v n ) are obtained for pPb collisions at sNN=8.16TeV 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=5.02TeV 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. |
id | cern-2800922 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2019 |
record_format | invenio |
spelling | cern-28009222022-10-28T12:59:15Zdoi:10.1016/j.nuclphysa.2018.09.064http://cds.cern.ch/record/2800922engWang, QuanMultiparticle correlations and higher order harmonics in pPb collisions at $\sqrt{s_{NN}}=$ 8.16TeVParticle Physics - ExperimentThe elliptic and higher-order azimuthal anisotropy Fourier harmonics ( v n ) are obtained for pPb collisions at sNN=8.16TeV 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=5.02TeV 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.oai:cds.cern.ch:28009222019 |
spellingShingle | Particle Physics - Experiment Wang, Quan Multiparticle correlations and higher order harmonics in pPb collisions at $\sqrt{s_{NN}}=$ 8.16TeV |
title | Multiparticle correlations and higher order harmonics in pPb collisions at $\sqrt{s_{NN}}=$ 8.16TeV |
title_full | Multiparticle correlations and higher order harmonics in pPb collisions at $\sqrt{s_{NN}}=$ 8.16TeV |
title_fullStr | Multiparticle correlations and higher order harmonics in pPb collisions at $\sqrt{s_{NN}}=$ 8.16TeV |
title_full_unstemmed | Multiparticle correlations and higher order harmonics in pPb collisions at $\sqrt{s_{NN}}=$ 8.16TeV |
title_short | Multiparticle correlations and higher order harmonics in pPb collisions at $\sqrt{s_{NN}}=$ 8.16TeV |
title_sort | multiparticle correlations and higher order harmonics in ppb collisions at $\sqrt{s_{nn}}=$ 8.16tev |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1016/j.nuclphysa.2018.09.064 http://cds.cern.ch/record/2800922 |
work_keys_str_mv | AT wangquan multiparticlecorrelationsandhigherorderharmonicsinppbcollisionsatsqrtsnn816tev |