Measurement of inclusive jet cross sections in pp and PbPb collisions at root s(NN)=2.76 TeV

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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 CERN Large Hadron Collider, are presented. Jets are reconstructed with three different distance parameters (R = 0.2, 0.3, and 0.4) for transverse momentum (p(T)) greater than 70 GeV/c and pseudorapidity |eta| < 2. Next-to-leading-order quantum chromodynamic calculations with nonperturbative corrections are found to overpredict 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 p(T). They are found to be independent of the distance parameter in the measured kinematic range.

Autore Pugliese

Tutti gli autori

  • POMPILI A.;MINIELLO G.;SELVAGGI G.;ABBRESCIA M.;DE PALMA M.;VENDITTI R.;MY S.;NUZZO S.V.

Titolo volume/Rivista

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Anno di pubblicazione

2017

ISSN

2469-9985

ISBN

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Numero di citazioni Wos

7

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

22

Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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