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Identification techniques for highly boosted W bosons that decay into hadrons

Abstract : In searches for new physics in the energy regime of the LHC, it is becoming increasingly important to distinguish single-jet objects that originate from the merging of the decay products of W bosons produced with high transverse momenta from jets initiated by single partons. Algorithms are defined to identify such W jets for different signals of interest, using techniques that are also applicable to other decays of bosons to hadrons that result in a single jet, such as those from highly boosted Z and Higgs bosons. The efficiency for tagging W jets is measured in data collected with the CMS detector at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 inverse femtobarns. The performance of W tagging in data is compared with predictions from several Monte Carlo simulators.
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Contributor : Dominique Girod Connect in order to contact the contributor
Submitted on : Friday, October 17, 2014 - 10:04:13 AM
Last modification on : Monday, December 13, 2021 - 9:15:24 AM

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V. Khachatryan, M. Besancon, F. Couderc, M. Dejardin, D. Denegri, et al.. Identification techniques for highly boosted W bosons that decay into hadrons. Journal of High Energy Physics, Springer, 2014, 2014 (12), pp.017. ⟨10.1007/JHEP12(2014)017⟩. ⟨in2p3-01075263⟩



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