# Measurement of the ratio of the 3-jet to 2-jet cross sections in pp collisions at √s = 7 TeV

CMS Collaboration; Amsler, C; Chiochia, V; Aguiló, E; De Visscher, S; Schmitt, A; Otyugova, P; Storey, J; Millan, B; Ivova, M; Favaro, C; Verzetti, M; Snoek, H (2011). Measurement of the ratio of the 3-jet to 2-jet cross sections in pp collisions at √s = 7 TeV. Physics Letters B, 702(5):336-354.

## Abstract

A measurement of the ratio of the inclusive 3-jet to 2-jet cross sections as a function of the total jet transverse momentum, HT, in the range 0.2<HT<2.5 TeV is presented. The data have been collected at a proton–proton centre-of-mass energy of 7 TeV with the CMS detector at the LHC, and correspond to an integrated luminosity of 36 pb−1. Comparisons are made between the data and the predictions of different QCD-based Monte Carlo models for multijet production. All models considered in this study are consistent with the data for HT>0.5 TeV. This measurement extends to an HT range that has not been explored before.

## Abstract

A measurement of the ratio of the inclusive 3-jet to 2-jet cross sections as a function of the total jet transverse momentum, HT, in the range 0.2<HT<2.5 TeV is presented. The data have been collected at a proton–proton centre-of-mass energy of 7 TeV with the CMS detector at the LHC, and correspond to an integrated luminosity of 36 pb−1. Comparisons are made between the data and the predictions of different QCD-based Monte Carlo models for multijet production. All models considered in this study are consistent with the data for HT>0.5 TeV. This measurement extends to an HT range that has not been explored before.

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Other titles: Measurement of the Ratio of the 3-jet to 2-jet Cross Sections in pp Collisions at sqrt(s) = 7 TeV Journal Article, refereed, original work 07 Faculty of Science > Physics Institute 530 Physics English 2011 13 Feb 2012 07:50 26 Dec 2017 10:01 Elsevier 0370-2693 (P) 1873-2445 (E) https://doi.org/10.1016/j.physletb.2011.07.067 http://arxiv.org/abs/1106.0647