Measurement of the inclusive jet cross section in pp collisions at $$\sqrt{s} = 2.76\,\text {TeV}$$

The double-differential inclusive jet cross section is measured as a function of jet transverse momentum $$p_{\mathrm {T}}$$and absolute rapidity $$|y |$$, using proton-proton collision data collected with the CMS experiment at the LHC, at a center-of-mass energy of $$\sqrt{s} = 2.76\,{\mathrm{TeV}}$$ and corresponding to an integrated luminosity of 5.43$$\,\text {pb}^{-1}$$. Jets are reconstructed within the $$p_{\mathrm {T}}$$range of 74 to 592$$\,\text {GeV}$$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.