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Measurement of the Ratio of Inclusive Jet Cross Sections Using the Anti-k[subscript T] Algorithm with Radius Parameters R = 0.5 and 0.7 in pp Collisions at √s = 7 TeV

Author(s)
Apyan, Aram; Busza, Wit; Cali, Ivan Amos; Chan, M.; Di Matteo, Leonardo; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Gulhan, Doga Can; Klute, Markus; Lai, Yue Shi; Ma, Teng; Paus, Christoph M. E.; Ralph, Duncan Kelley; Stephans, George S. F.; Velicanu, Dragos Alexandru; Veverka, Jan; Wyslouch, Boleslaw; Yoon, A. S.; Zanetti, Marco; Stoeckli, Fabian; Sumorok, Konstanty C; Yang, Mingming; Wyslouch, Victoria; Barbieri, Richard Alexander; Bauer, Gerry P; Dutta, Valentina; Lee, Yen-Jie; Levin, Andrew Michael; Luckey Jr, P David; Roland, Christof E; Roland, Gunther M; ... Show more Show less
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Abstract
Measurements of the inclusive jet cross section with the anti-k[subscript 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 √s = 7  TeV corresponding to an integrated luminosity of 5.0  fb[superscript −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.
Date issued
2014-10
URI
http://hdl.handle.net/1721.1/91222
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. School of Science
Journal
Physical Review D
Publisher
American Physical Society
Citation
Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Measurement of the Ratio of Inclusive Jet Cross Sections Using the Anti-k[subscript T] Algorithm with Radius Parameters R = 0.5 and 0.7 in pp Collisions at √s = 7 TeV.” Phys. Rev. D 90, no. 7 (October 2014). © 2014 CERN, for the CMS Collaboration
Version: Final published version
ISSN
1550-7998
1550-2368

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