CMS-PAS-SMP-14-017

CMS-PAS-SMP-14-017
Measurement of the inclusive jet cross section in pp collisions at $\sqrt{s}$ = 2.76 TeV
CMS Collaboration
July 2015

Abstract: The double-differential inclusive jet cross section is measured as a function of jet transverse momentum ( $p_\mathrm{T}$ ) and absolute rapidity ( $\|y\|$ ) with proton-proton collision data from the CMS experiment at the LHC. The measurement is performed with data collected in 2013 at $\sqrt{s} =$ 2.76 TeV and corresponding to integrated luminosity of 5.43 pb $^{-1}$ . Jets are reconstructed within the $p_\mathrm{T}$ range of 74 to 592 GeV and $\|y\|$ range of 0.0 to 3.0 using the anti-k $_T$ algorithm with $R = 0.7$ . The reconstructed jet spectrum is unfolded to the particle level and compared to QCD predictions at next-to-leading order. The theoretical predictions are provided for five different sets of parton distribution functions and are corrected for non-perturbative effects. A theory-normalized cross section ratio is calculated using the measurements at $\sqrt{s} =$ 2.76 TeV and 8 TeV. The predictions of QCD are tested in a previously unprobed kinematic regime at 2.76 TeV center-of-mass energy. A ratio to the measured inclusive jet cross section at $\sqrt{s} =$ 8 TeV is calculated.
Links: CDS record (PDF) ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; These preliminary results are superseded in this paper, EPJC 76 (2016) 265. The superseded preliminary plots can be found here.

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