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dc.contributor.authorAcharya, Shreyasipt_BR
dc.contributor.authorGay Ducati, Maria Beatrizpt_BR
dc.contributor.authorPereira, Luis Gustavopt_BR
dc.contributor.authorPezzi, Rafael Perettipt_BR
dc.contributor.authorALICE Collaborationpt_BR
dc.date.accessioned2018-05-17T02:27:15Zpt_BR
dc.date.issued2018pt_BR
dc.identifier.issn0370-2693pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/178435pt_BR
dc.description.abstractThis letter presents the first measurement of jet mass in Pb–Pband p–Pbcollisions at √sNN=2.76TeV and √sNN=5.02TeV, respectively. Both the jet energy and the jet mass are expected to be sensitive to jet quenching in the hot Quantum Chromodynamics (QCD) matter created in nuclear collisions at collider energies. Jets are reconstructed from charged particles using the anti-kTjet algorithm and resolution parameter R =0.4. The jets are measured in the pseudorapidity range |ηjet| <0.5and in three intervals of transverse momentum between 60 GeV/cand 120 GeV/c. The measurement of the jet mass in central Pb–Pbcollisions is compared to the jet mass as measured in p–Pbreference collisions, to vacuum event generators, and to models including jet quenching. It is observed that the jet mass in central Pb–Pbcollisions is consistent within uncertainties with p–Pbreference measurements. Furthermore, the measured jet mass in Pb–Pbcollisions is not reproduced by the quenching models considered in this letter and is found to be consistent with PYTHIA expectations within systematic uncertainties.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofPhysics letters. B. Amsterdam. Vol. 776 (Jan. 2018), p. 249-264pt_BR
dc.rightsOpen Accessen
dc.subjectAceleradores de partículaspt_BR
dc.subjectColisao de ions pesadospt_BR
dc.titleFirst measurement of jet mass in Pb–Pb and p–Pb collisions at the LHCpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001060861pt_BR
dc.type.originEstrangeiropt_BR


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