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Measurement of the ATLAS di-muon trigger efficiency in proton-proton collisions at 7 TeV

The B physics program of the ATLAS experiment includes the study of the production cross sections, the searches for rare b decays signatures which are sensitive to new physics at the TeV energy scale and the measurements of CP violation effects in B-events, such as Bs0 → J/psi phi and Bd → J /psi Ks...

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Detalles Bibliográficos
Autores principales: Sanchez, A, Conventi, F, Rossi, E, Picazio, A
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:http://cds.cern.ch/record/1361355
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author Sanchez, A
Conventi, F
Rossi, E
Picazio, A
author_facet Sanchez, A
Conventi, F
Rossi, E
Picazio, A
author_sort Sanchez, A
collection CERN
description The B physics program of the ATLAS experiment includes the study of the production cross sections, the searches for rare b decays signatures which are sensitive to new physics at the TeV energy scale and the measurements of CP violation effects in B-events, such as Bs0 → J/psi phi and Bd → J /psi Ks. The key to the detection of these B signals in ATLAS is to achieve a high trigger efficiency for low-pT di-muons events, while keeping an acceptable trigger rate. Atlas developed two separates approaches for triggering on di-muons events from a resonance such as a J/psi and Upsilon. The first approach is to start from a di-muons trigger selected by the Level-1 trigger while the second is based on dedicated Level-2 algorithm. The performance of di-muons trigger has been studied using collision data at sqrt{s} =7TeV. Results are compared to MonteCarlo predictions.
id cern-1361355
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-13613552019-09-30T06:29:59Zhttp://cds.cern.ch/record/1361355engSanchez, AConventi, FRossi, EPicazio, AMeasurement of the ATLAS di-muon trigger efficiency in proton-proton collisions at 7 TeVDetectors and Experimental TechniquesThe B physics program of the ATLAS experiment includes the study of the production cross sections, the searches for rare b decays signatures which are sensitive to new physics at the TeV energy scale and the measurements of CP violation effects in B-events, such as Bs0 → J/psi phi and Bd → J /psi Ks. The key to the detection of these B signals in ATLAS is to achieve a high trigger efficiency for low-pT di-muons events, while keeping an acceptable trigger rate. Atlas developed two separates approaches for triggering on di-muons events from a resonance such as a J/psi and Upsilon. The first approach is to start from a di-muons trigger selected by the Level-1 trigger while the second is based on dedicated Level-2 algorithm. The performance of di-muons trigger has been studied using collision data at sqrt{s} =7TeV. Results are compared to MonteCarlo predictions.ATL-PHYS-SLIDE-2011-314oai:cds.cern.ch:13613552011-06-24
spellingShingle Detectors and Experimental Techniques
Sanchez, A
Conventi, F
Rossi, E
Picazio, A
Measurement of the ATLAS di-muon trigger efficiency in proton-proton collisions at 7 TeV
title Measurement of the ATLAS di-muon trigger efficiency in proton-proton collisions at 7 TeV
title_full Measurement of the ATLAS di-muon trigger efficiency in proton-proton collisions at 7 TeV
title_fullStr Measurement of the ATLAS di-muon trigger efficiency in proton-proton collisions at 7 TeV
title_full_unstemmed Measurement of the ATLAS di-muon trigger efficiency in proton-proton collisions at 7 TeV
title_short Measurement of the ATLAS di-muon trigger efficiency in proton-proton collisions at 7 TeV
title_sort measurement of the atlas di-muon trigger efficiency in proton-proton collisions at 7 tev
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1361355
work_keys_str_mv AT sancheza measurementoftheatlasdimuontriggerefficiencyinprotonprotoncollisionsat7tev
AT conventif measurementoftheatlasdimuontriggerefficiencyinprotonprotoncollisionsat7tev
AT rossie measurementoftheatlasdimuontriggerefficiencyinprotonprotoncollisionsat7tev
AT picazioa measurementoftheatlasdimuontriggerefficiencyinprotonprotoncollisionsat7tev