Measurement of the ratio of inclusive jet cross sections using the anti-kT algorithm with radius parameters R=0.5 and 0.7 in pp collisions at ?s=7 TeV

Chatrchyan, S.Khachatryan, V.Sirunyan, A. M.Tumasyan, A.Adam, W.Bergauer, T.The CMS Collaboration2025-03-072025-03-0720141550-79981550-2368https://doi.org/10.1103/PhysRevD.90.072006https://hdl.handle.net/20.500.12507/2871Measurements of the inclusive jet cross section with the anti-k(T) clustering algorithm are presented for two radius parameters, R = 0.5 and 0.7. They are based on data from LHC proton-proton collisions at root s = 7 TeV corresponding to an integrated luminosity of 5.0 fb(-1) collected with the CMS detector in 2011. The ratio of these two measurements is obtained as a function of the rapidity and transverse momentum of the jets. Significant discrepancies are found comparing the data to leading-order simulations and to fixed-order calculations at next-to-leading order, corrected for nonperturbative effects, whereas simulations with next-to-leading-order matrix elements matched to parton showers describe the data best.eninfo:eu-repo/semantics/openAccessMeasurement of the ratio of inclusive jet cross sections using the anti-kT algorithm with radius parameters R=0.5 and 0.7 in pp collisions at ?s=7 TeVArticle907WOS:00034370140000110.1103/PhysRevD.90.072006Q1