Multiparticle correlations and higher order harmonics in pPbcollisions at√sNN=8.16 TeV
The elliptic and higher-order azimuthal anisotropy Fourier harmonics (v n ) are obtained for pPb collisions at s NN =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 Pb...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Elsevier B.V.
2019
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/71934/ http://irep.iium.edu.my/71934/ http://irep.iium.edu.my/71934/ http://irep.iium.edu.my/71934/1/71934_Multiparticle%20correlations%20and%20higher_article.pdf http://irep.iium.edu.my/71934/2/71934_Multiparticle%20correlations%20and%20higher_wos.pdf http://irep.iium.edu.my/71934/3/71934_Multiparticle%20correlations%20and%20higher_scopus.pdf |
| Summary: | The elliptic and higher-order azimuthal anisotropy Fourier harmonics (v n ) are obtained for pPb collisions at s NN =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 s NN =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. |
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