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.

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). Identification of beauty and charm quark jets at LHCb. JOURNAL OF INSTRUMENTATION, 10(6) [10.1088/1748-0221/10/06/P06013].

Identification of beauty and charm quark jets at LHCb

Borsato, M;CALVI, MARTA;CARNITI, PAOLO;CASSINA, LORENZO;GOTTI, CLAUDIO;KHANJI, BASEM;Martinelli, M;Petruzzo, M;
2015

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 > 20GeV and pseudorapidity 2.2 < η < 4.2. The dependence of the performance on the pT and η of the jet is also measured.
Articolo in rivista - Articolo scientifico
Analysis and statistical methods; Performance of High Energy Physics Detectors; Instrumentation; Mathematical Physics
English
2015
10
6
P06013
none
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). Identification of beauty and charm quark jets at LHCb. JOURNAL OF INSTRUMENTATION, 10(6) [10.1088/1748-0221/10/06/P06013].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/90864
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