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Identification of beauty and charm quark jets at LHCb

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Identification of jets originating from beauty and charm quarks is important for measuring Standard Model processes and for searching for new physics. The performance of algorithms developed to select b- and c-quark jets is measured using data recorded by LHCb from proton-proton collisions at √s = 7 TeV in 2011 and at √s = 8 TeV in 2012. The efficiency for identifying a b(c) jet is about 65%(25%) with a probability for misidentifying a light-parton jet of 0.3% for jets with transverse momentum pT > 20GeV and pseudorapidity 2.2 < η < 4.2. The dependence of the performance on the pT and η of the jet is also measured.

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Journal of Instrumentation, 2015, vol. 10, num. P06013

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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Identification of beauty and charm quark jets at LHCb