Measurements of inclusive jet spectra in pp and central Pb-Pb collisions at √sNN=5.02TeV
Acharya, Shreyasi; Adamová, Dagmar; Adler, Alexander; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Shafiq F.; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Eikeland, Viljar Nilsen; Ersdal, Magnus Rentsch; Fionda, Fiorella Maria Celeste; Grøttvik, Ola Slettevoll; Lofnes, Ingrid Mckibben; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Wagner, Boris; Yang, Shiming; Yuan, Shiming; Zhou, Zhuo; Dordic, Olja; Lardeux, Antoine Xavier; Mahmood, Sohail Musa; Malik, Qasim Waheed; Neagu, Alexandra; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Langøy, Rune; Lien, Jørgen André; Ahn, Sang Un; Akindinov, Alexander; Al-Turany, Mohammed; Alam, Sk Noor; De Albuquerque, Danilo Silva; Aleksandrov, Dimitry; ALICE, Collaboration
Journal article, Peer reviewed
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Original versionPhysical Review C. 2020, 101, 034911 10.1103/PhysRevC.101.034911
This article reports measurements of the p T -differential inclusive jet cross section in p p collisions at √ s = 5.02 TeV and the p T -differential inclusive jet yield in Pb-Pb 0–10% central collisions at √ s N N = 5.02 TeV . Jets were reconstructed at midrapidity with the ALICE tracking detectors and electromagnetic calorimeter using the anti- k T algorithm. For p p collisions, we report jet cross sections for jet resolution parameters R = 0.1 – 0.6 over the range 20 < p T , jet < 140 GeV / c , as well as the jet cross-section ratios of different R and comparisons to two next-to-leading-order (NLO)–based theoretical predictions. For Pb-Pb collisions, we report the R = 0.2 and R = 0.4 jet spectra for 40 < p T , jet < 140 GeV / c and 60 < p T , jet < 140 GeV / c , respectively. The scaled ratio of jet yields observed in Pb-Pb to p p collisions, R AA , is constructed, and exhibits strong jet quenching and a clear p T dependence for R = 0.2 . No significant R dependence of the jet R AA is observed within the uncertainties of the measurement. These results are compared to several theoretical predictions.