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

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doi:10.1016/j.physletb.2011.07.067

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 < H(T) < 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 H(T) > 0.5 TeV. This measurement extends to an H(T) range that has not been explored before. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.

Measurement of the ratio of the 3-jet to 2-jet cross sections in pp collisions at root s=7 TeV / Chatrchyan, S., Khachatryan, V., Sirunyan, A.m., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Ero, J., Fabjan, C., Friedl, M., Fruhwirth, R., Ghete, V.m., Hammer, J., Hansel, S., Hoch, M., Hormann, N., Hrubec, J., Jeitler, M., Kasieczka, G., Kiesenhofer, W., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 702:5(2011), pp. 336-354. [10.1016/j.physletb.2011.07.067]