Identification techniques for highly boosted W bosons that decay into hadrons
V. Khachatryan (Yerevan Physics Institute, Yerevan, Armenia); A. Sirunyan (Yerevan Physics Institute, Yerevan, Armenia); A. Tumasyan (Yerevan Physics Institute, Yerevan, Armenia); W. Adam (Institut für Hochenergiephysik der OeAW, Wien, Austria); T. Bergauer (Institut für Hochenergiephysik der OeAW, Wien, Austria); et al - Show all 2147 authors
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.