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dc.contributor.authorALICE, Collaboration
dc.contributor.authorLangøy, Rune
dc.contributor.authorLien, Jørgen
dc.date.accessioned2015-03-05T07:40:32Z
dc.date.accessioned2016-01-15T12:42:54Z
dc.date.available2015-03-05T07:40:32Z
dc.date.available2016-01-15T12:42:54Z
dc.date.issued2014
dc.identifier.issn1029-8479
dc.identifier.urihttp://hdl.handle.net/11250/2373975
dc.description.abstractA measurement of the transverse momentum spectra of jets in Pb–Pb collisions at √sNN = 2.76 TeV is reported. Jets are reconstructed from charged particles using the anti-kT jet algorithm with jet resolution parameters R of 0.2 and 0.3 in pseudorapidity|η| < 0.5. The transverse momentum pT of charged particles is measured down to 0.15 GeV/c which gives access to the low pT fragments of the jet. Jets found in heavy-ion collisions are corrected event-by-event for average background density and on an inclusive basis (via unfolding) for residual background fluctuations and detector effects. A strong suppression of jet production in central events with respect to peripheral events is observed. The suppression is found to be similar to the suppression of charged hadrons, which suggests that substantial energy is radiated at angles larger than the jet resolution parameter R = 0.3 considered in the analysis. The fragmentation bias introduced by selecting jets with a high pT leading particle, which rejects jets with a soft fragmentat ion pattern, has a similar effect on the jet yield for central and peripheral events. The ratio of jet spectra with R = 0.2 and R = 0.3 is found to be similar in Pb–Pb and simulated PYTHIA pp events, indicating no strong broadening of the radial jet structure in the reconstructed jets with R < 0.3.
dc.language.isoengnb_NO
dc.rightsNavngivelse 3.0 Norge
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/no/
dc.titleMeasurement of charged jet suppression in Pb-Pb collisions at √sNN = 2.76 TeVnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewed
dc.date.updated2015-03-05T07:40:32Z
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431nb_NO
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431nb_NO
dc.identifier.doi10.1007/JHEP03(2014)013
dc.identifier.cristin1149233
dc.relation.projectNorges forskningsråd: 217288nb_NO


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