The European Physical Journal C > 2016 > 76 > 7 > 1-24
Measurement of inclusive jet production and nuclear modifications in pPb collisions at $$\sqrt{s_{_\mathrm {NN}}} =5.02\,\mathrm{TeV} $$ s NN = 5.02 TeV
Source
Abstract
Inclusive jet production in pPb collisions at a nucleon–nucleon (NN) center-of-mass energy of $$\sqrt{s_{_\mathrm {NN}}} =5.02\,\mathrm{TeV} $$ s NN = 5.02 TeV is studied with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 30.1 nb $$^{-1}$$ - 1 is analyzed. The jet transverse momentum spectra are studied in seven pseudorapidity intervals covering the range $$ -2.0<\eta _\mathrm {CM}< 1.5$$ - 2.0 < η CM < 1.5 in the NN center-of-mass frame. The jet production yields at forward and backward pseudorapidity are compared and no significant asymmetry about $$\eta _\mathrm {CM} = 0$$ η CM = 0 is observed in the measured kinematic range. The measurements in the pPb system are compared to reference jet spectra obtained by extrapolation from previous measurements in pp collisions at $$\sqrt{s}=7\,\mathrm{TeV} $$ s = 7 TeV . In all pseudorapidity ranges, nuclear modifications in inclusive jet production are found to be small, as predicted by next-to-leading order perturbative QCD calculations that incorporate nuclear effects in the parton distribution functions.
Identifiers
journal ISSN : | 1434-6044 |
journal e-ISSN : | 1434-6052 |
DOI | 10.1140/epjc/s10052-016-4205-7 |