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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...
Autores principales: | , , , |
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Lenguaje: | eng |
Publicado: |
2011
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1361355 |
_version_ | 1780922685456384000 |
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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 |