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A new method to distinguish hadronically decaying boosted Z bosons from W bosons using the ATLAS detector

et al.
Abstract

The distribution of particles inside hadronic jets produced in the decay of boosted W and Z bosons can be used to discriminate such jets from the continuum background. Given that a jet has been identified as likely resulting from the hadronic decay of a boosted W or Z boson, this paper presents a technique for further differentiating Z bosons from W bosons. The variables used are jet mass, jet charge, and a b-tagging discriminant. A likelihood tagger is constructed from these variables and tested in the simulation of W′→WZ$$W'\rightarrow WZ$$ for bosons in the transverse momentum range 200 GeV 

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