Azimuthal anisotropies of charged particles with high transverse momentum in Pb+Pb collisions at √𝑠NN=5.02 TeV with the ATLAS detector
A measurement is presented of elliptic (𝑣2) and triangular (𝑣3) azimuthal anisotropy coefficients for charged particles produced in Pb+Pb collisions at √𝑠NN=5.02 TeV using a dataset corresponding to an integrated luminosity of 0.44nb−1 collected with the ATLAS detector at the LHC in 2018. The values...
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| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
27 August 2025
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| In: |
Physical review
Year: 2025, Volume: 112, Issue: 2, Pages: 1-34 |
| ISSN: | 2469-9993 |
| DOI: | 10.1103/d46f-yl4n |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/d46f-yl4n Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/d46f-yl4n 
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| Author Notes: | G. Aad et al. (ATLAS Collaboration)* |
MARC
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| 245 | 1 | 0 | |a Azimuthal anisotropies of charged particles with high transverse momentum in Pb+Pb collisions at √NN=5.02 TeV with the ATLAS detector |c G. Aad et al. (ATLAS Collaboration)* |
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| 246 | 3 | 3 | |a Azimuthal anisotropies of charged particles with high transverse momentum in Pb+Pb collisions at square root NN = 5.02 TeV with the ATLAS detector |
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| 500 | |a Veröffentlicht: 27. August 2025 | ||
| 500 | |a *ATLAS Collaboration: G. Aad, A. Ackermann, M.J. Backes, L.M. Baltes, F. Bartels, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, T. Mkrtchyan, D.F. Rassloff, L. Sanfilippo, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, L. Vigani, M. Wessels, J. Zinsser [und 2872 weitere Personen] | ||
| 500 | |a Gesehen am 05.03.2026 | ||
| 500 | |a Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol | ||
| 520 | |a A measurement is presented of elliptic (2) and triangular (3) azimuthal anisotropy coefficients for charged particles produced in Pb+Pb collisions at √NN=5.02 TeV using a dataset corresponding to an integrated luminosity of 0.44nb−1 collected with the ATLAS detector at the LHC in 2018. The values of 2 and 3 are measured for charged particles over a wide range of transverse momentum (T), 1-400 GeV, and Pb+Pb collision centrality, 0-60%, using the scalar-product and multiparticle cumulant methods. These methods are sensitive to event-by-event fluctuations and nonflow effects in the measurements of azimuthal anisotropies. Positive values of 2 are observed up to a T of approximately 100 GeV from both methods across all centrality intervals. Positive values of 3 are observed up to approximately 25 GeV using both methods, though the application of the three-subevent technique to the multiparticle cumulant method leads to significant changes at the highest T. At high T (T⪆10 GeV), charged particles are dominantly from jet fragmentation. These jets, and hence the measurements presented here, are sensitive to the path-length dependence of parton energy loss in the quark-gluon plasma produced in Pb+Pb collisions. | ||
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