Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/123877
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Type: | Journal article |
Title: | Transverse momentum and process dependent azimuthal anisotropies in √sNN = 8.16 TeV p+Pb collisions with the ATLAS detector |
Other Titles: | Transverse momentum and process dependent azimuthal anisotropies in root sNN = 8.16 TeV p+Pb collisions with the ATLAS detector |
Author: | Aad, G. Abbott, B. Abbott, D.C. Abud, A.A. Abeling, K. Abhayasinghe, D.K. Abidi, S.H. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Achkar, B. Adachi, S. Adam, L. Bourdarios, C.A. Adamczyk, L. Adamek, L. Adelman, J. et al. |
Citation: | European Physical Journal C: Particles and Fields, 2020; 80(1):73-1-73-31 |
Publisher: | Springer Nature |
Issue Date: | 2020 |
ISSN: | 1434-6044 1434-6052 |
Statement of Responsibility: | G. Aad … D. Duvnjak … P. Jackson … A. Petridis … A. Qureshi … A.S. Sharma … M.J. White .. et al [The ATLAS Collaboration]. |
Abstract: | The azimuthal anisotropy of charged particles produced in √sNN = 8.16 TeV p+Pb collisions is measured with the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 165 nb⁻¹ that was collected in 2016. Azimuthal anisotropy coefficients, elliptic v2 and triangular v3, extracted using two-particle correlations with a non-flow template fit procedure, are presented as a function of particle transverse momentum (pT) between 0.5 and 50 GeV. The v2 results are also reported as a function of centrality in three different particle pT intervals. The results are reported from minimum-bias events and jet-triggered events, where two jet pT thresholds are used. The anisotropies for particles with pT less than about 2 GeV are consistent with hydrodynamic flow expectations, while the significant non-zero anisotropies for pT in the range 9–50 GeV are not explained within current theoretical frameworks. In the pT range 2–9 GeV, the anisotropies are larger in minimum-bias than in jet-triggered events. Possible origins of these effects, such as the changing admixture of particles from hard scattering and the underlying event, are discussed. |
Rights: | © CERN for the benefit of the ATLAS collaboration 2020. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP³. |
DOI: | 10.1140/epjc/s10052-020-7624-4 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1140/epjc/s10052-020-7624-4 |
Appears in Collections: | Aurora harvest 8 Physics publications |
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hdl_123877.pdf | Published version | 2.2 MB | Adobe PDF | View/Open |
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