Measurement of inclusive jet cross-sections in pp and PbPb collisions at sqrt(s[NN])=2.76 TeV

Abstract : Inclusive jet spectra from pp and PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV, collected with the CMS detector at the LHC, are presented. Jets are reconstructed with three different distance parameters for transverse momentum (pt) greater than 70 GeV and pseudorapidity abs(eta)< 2. Next-to-leading-order quantum chromodynamic calculations with non-perturbative corrections are found to over-predict jet production cross sections in pp for small distance parameters. The jet nuclear modification factors for PbPb compared to pp collisions, show a steady decrease from peripheral to central events, along with a weak dependence on the jet pt. They are found to be independent of the distance parameter in the measured kinematic range.
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Physical Review C, American Physical Society, 2017, 96, pp.015202. 〈10.1103/PhysRevC.96.015202〉
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http://hal.in2p3.fr/in2p3-01368772
Contributeur : Sylvie Flores <>
Soumis le : mardi 20 septembre 2016 - 07:14:38
Dernière modification le : jeudi 10 mai 2018 - 01:58:10

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V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Measurement of inclusive jet cross-sections in pp and PbPb collisions at sqrt(s[NN])=2.76 TeV. Physical Review C, American Physical Society, 2017, 96, pp.015202. 〈10.1103/PhysRevC.96.015202〉. 〈in2p3-01368772〉

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