Measurement of inclusive jet production and nuclear modifications in pPb collisions at root s(NN)=5.02 TeV

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Date
2016
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Springer
Abstract

Inclusive jet production in pPb collisions at a nucleon-nucleon (NN) center-of-mass energy of \sqrt{s_{\mathrm{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}) is analyzed. The jet transverse momentum spectra are studied in seven pseudorapidity intervals covering the range -2.0 < (\eta_{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_{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 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.

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Keywords
BIAS, Physics, Particles & Fields, Physics
Citation
Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., Brandstetter, J., Brondolin, E., Dragicevic, M., Erö, J., Flechl, M., Friedl, M., Frühwirth, R., Ghete, V. M., Hartl, C., Hörmann, N., Hrubec, J., Jeitler, M., Knünz, V., … Collaboration, [Authorinst]The CMS. (2016). 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. In The European Physical Journal C (Vol. 76, Issue 7). Springer Science and Business Media LLC. https://doi.org/10.1140/epjc/s10052-016-4205-7