# Identification techniques for highly boosted W bosons that decay into hadrons

Journal of High Energy Physics, Dec 2014

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 fb−1. The performance of W tagging in data is compared with predictions from several Monte Carlo simulators.

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V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam. Identification techniques for highly boosted W bosons that decay into hadrons, Journal of High Energy Physics, 2014, 17, DOI: 10.1007/JHEP12(2014)017