A NNLO QCD fit to CMS inclusive jet cross sections at 2.76, 7, 8 and 13 TeV plus HERA DIS yields alphaS(mZ) = 0.1176 (+0.0014, -0.0016) and confirms the predicted running of the strong coupling up to 1.6 TeV.
Measurement of the inclusive jet cross section in pp collisions at sqrt(s) = 2.76 TeV
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abstract
The double-differential inclusive jet cross section is measured as a function of jet transverse momentum pT and absolute rapidity y, using proton-proton collision data collected with the CMS experiment at the LHC, at a center-of-mass energy of sqrt(s) = 2.76 TeV and corresponding to an integrated luminosity of 5.43 inverse picoboarns. Jets are reconstructed within the pT range of 74 to 592 GeV and the rapidity range |y| < 3.0. The reconstructed jet spectrum is corrected for detector resolution. The measurements are compared to the theoretical prediction at next-to-leading-order QCD using different sets of parton distribution functions. This inclusive cross section measurement explores a new kinematic region and is consistent with QCD predictions.
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Determination of the strong coupling and its running from measurements of inclusive jet production
A NNLO QCD fit to CMS inclusive jet cross sections at 2.76, 7, 8 and 13 TeV plus HERA DIS yields alphaS(mZ) = 0.1176 (+0.0014, -0.0016) and confirms the predicted running of the strong coupling up to 1.6 TeV.