Measurement of inclusive jet production and nuclear modifications in pPb collisions at √sNN = 5.02 TeV

Absztrakt

Inclusive jet production in pPb collisions at a nucleon–nucleon (NN) center-of-mass energy of √sNN= 5.02TeV is studied with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 30.1 nb- 1 is analyzed. The jet transverse momentum spectra are studied in seven pseudorapidity intervals covering the range - 2.0 < ηCM< 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 ηCM= 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 √s=7TeV. 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.

Leírás
Kulcsszavak
idegen nyelvű folyóiratközlemény külföldi lapban, Center-of-mass energies, Centre-of-mass energies, CMS detectors, Data sample, Integrated luminosity, Jet productions, Measurements of, Nuclear modification, Nucleon-nucleon, Pseudorapidities
Jogtulajdonos
CERN
Jelzet
Egyéb azonosító
Forrás
European Physical Journal C. -76 : 7 (2016), p. 1-24. -Eur. Phys. J. C. -1434-6044
Támogatás