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Title: | Multiparticle correlation studies in pPb collisions root s(NN)=8.16 TeV |
Authors: | CMS Collaboration Sirunyan, A. M. CHAUHAN, S. DUBE, SOURABH HEGDE, V. KAPOOR, A. KOTHEKAR, K. PANDEY, S. RANE, A. RASTOGI, A. SHARMA, SEEMA et al. Dept. of Physics |
Keywords: | Physics TOC-FEB-2020 2020 |
Issue Date: | Jan-2020 |
Publisher: | American Physical Society |
Citation: | Physical Review C, 101(1). |
Abstract: | The second- and third-order azimuthal anisotropy Fourier harmonics of charged particles produced in pPb collisions, at root s(NN) = 8.16 TeV, 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 root s(NN) = 5.02 TeV 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(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. |
URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/4459 https://doi.org/10.1103/PhysRevC.101.014912 |
ISSN: | 2469-9985 2469-9993 |
Appears in Collections: | JOURNAL ARTICLES |
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