Measurement of the radius dependence of charged-particle jet suppression in Pb-Pb collisions at √𝑠NN = 5.02TeV
The ALICE Collaboration reports a differential measurement of inclusive jet suppression using pp and Pb-Pb collision data at a center-of-mass energy per nucleon-nucleon collision sNN=5.02 TeV. Charged-particle jets are reconstructed using the anti-kT algorithm with resolution parameters R=0.2, 0.3,...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
February 2024
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| In: |
Physics letters
Year: 2024, Jahrgang: 849, Pages: 1-22 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2023.138412 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1016/j.physletb.2023.138412 Verlag, kostenfrei, Volltext: https://www.sciencedirect.com/science/article/pii/S0370269323007451 
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| Verfasserangaben: | .ALICE Collaboration |
MARC
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| 245 | 1 | 0 | |a Measurement of the radius dependence of charged-particle jet suppression in Pb-Pb collisions at √NN = 5.02TeV |c .ALICE Collaboration |
| 246 | 3 | 3 | |a Measurement of the radius dependence of charged-particle jet suppression in Pb-Pb collisions at square root sNN = 5.02TeV |
| 264 | 1 | |c February 2024 | |
| 300 | |b Illustrationen | ||
| 300 | |a 22 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
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| 500 | |a Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt | ||
| 500 | |a Online verfügbar 21 December 2023, Version des Artikels 22 January 2024 | ||
| 500 | |a ALICE Collaboration: S. Acharya, V. Anguelov, A. Berdnikova, L. Bergmann, A.G. Borquez Carcamo, J. Crkovská, M.C. Danisch, V.J.G. Feuillard, I. Fokin, P. Glässel, M. Kroesen, A. Nath, Y. Pachmayer, K. Reygers, R. Schicker, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, C.A. van Veen, M. Völkl, B. Windelband, A. Yuncu, F. Zanone [und viele weitere] | ||
| 500 | |a Gesehen am 19.07.2024 | ||
| 520 | |a The ALICE Collaboration reports a differential measurement of inclusive jet suppression using pp and Pb-Pb collision data at a center-of-mass energy per nucleon-nucleon collision sNN=5.02 TeV. Charged-particle jets are reconstructed using the anti-kT algorithm with resolution parameters R=0.2, 0.3, 0.4, 0.5, and 0.6 in pp collisions and R=0.2, 0.4, 0.6 in central (0-10%), semi-central (30-50%), and peripheral (60-80%) Pb-Pb collisions. A novel approach based on machine learning is employed to mitigate the influence of jet background. This enables measurements of inclusive jet suppression in new regions of phase space, including down to the lowest jet pT≥40 GeV/c at R=0.6 in central Pb-Pb collisions. This is an important step for discriminating different models of jet quenching in the quark-gluon plasma. The transverse momentum spectra, nuclear modification factors, derived cross section, and nuclear modification factor ratios for different jet resolution parameters of charged-particle jets are presented and compared to model predictions. A mild dependence of the nuclear modification factor ratios on collision centrality and resolution parameter is observed. The results are compared to a variety of jet-quenching models with varying levels of agreement. | ||
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