# Identification of beauty and charm quark jets at LHCb

LHCb Collaboration; Adeva, B; Adinolfi, M; Aaij, R; et al (2015). Identification of beauty and charm quark jets at LHCb. Journal of Instrumentation, 10(06):online.

## Abstract

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>20 GeV and pseudorapidity 2.2<η<4.2. The dependence of the performance on the pT and η of the jet is also measured.

## Abstract

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>20 GeV 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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Item Type: Journal Article, refereed, original work 07 Faculty of Science > Physics Institute 530 Physics 28 April 2015 16 Feb 2016 11:16 14 Feb 2018 11:06 IOP Publishing 1748-0221 Hybrid https://doi.org/10.1088/1748-0221/10/06/P06013

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