The performance of the muon identification in LHCb is extracted from data using muons and hadrons produced in J/psi -> mu(+)mu(-), Lambda(0) -> p pi(-) and D star+ -> pi D-+(0) (K-pi(+)) decays. The muon identification procedure is based on the pattern of hits in the muon chambers. A momentum dependent binary requirement is used to reduce the probability of hadrons to be misidentified as muons to the level of 1%, keeping the muon efficiency in the range of 95-98%. As further refinement, a likelihood is built for the muon and non-muon hypotheses. Adding a requirement on this likelihood that provides a total muon efficiency at the level of 93%, the hadron misidentification probabilities are below 0.6%.

Archilli, F., Baldini, W., Bencivenni, G., Bondar, N., Bonivento, W., Cadeddu, S., et al. (2013). Performance of the Muon Identification at LHCb. JOURNAL OF INSTRUMENTATION, 8 [10.1088/1748-0221/8/10/P10020].

Performance of the Muon Identification at LHCb

F. Archilli;E. Santovetti;
2013-01-01

Abstract

The performance of the muon identification in LHCb is extracted from data using muons and hadrons produced in J/psi -> mu(+)mu(-), Lambda(0) -> p pi(-) and D star+ -> pi D-+(0) (K-pi(+)) decays. The muon identification procedure is based on the pattern of hits in the muon chambers. A momentum dependent binary requirement is used to reduce the probability of hadrons to be misidentified as muons to the level of 1%, keeping the muon efficiency in the range of 95-98%. As further refinement, a likelihood is built for the muon and non-muon hypotheses. Adding a requirement on this likelihood that provides a total muon efficiency at the level of 93%, the hadron misidentification probabilities are below 0.6%.
2013
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Archilli, F., Baldini, W., Bencivenni, G., Bondar, N., Bonivento, W., Cadeddu, S., et al. (2013). Performance of the Muon Identification at LHCb. JOURNAL OF INSTRUMENTATION, 8 [10.1088/1748-0221/8/10/P10020].
Archilli, F; Baldini, W; Bencivenni, G; Bondar, N; Bonivento, W; Cadeddu, S; Campana, P; Cardini, A; Ciambrone, P; Cid Vidal, X; Deplano, C; De Simone...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/136080
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