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Study of muon trigger scenarios for the measurement of $B_{s}^{0}$ oscillations in the channels $B_{s}^{0}\to D_{s}^{-}\pi^{+}$ and $B_{s}^{0}\to D_{s}^{-}a_1^{+}$
Within the ATLAS $B$-physics programme it is foreseen to study $B_s^0$ oscillations and measure the mixing parameter \dms. The measurement of this parameter is an important input for the determination of other $B_s^0$ parameters from e.g. the decay $B_s^0 \to J/\Psi \phi$, in particular the lifetime...
Autores principales: | , , , , |
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Lenguaje: | eng |
Publicado: |
2006
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1005811 |
_version_ | 1780911750926827520 |
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author | Jussel, P Stahl, T Epp, B Kneringer, E Walkowiak, W |
author_facet | Jussel, P Stahl, T Epp, B Kneringer, E Walkowiak, W |
author_sort | Jussel, P |
collection | CERN |
description | Within the ATLAS $B$-physics programme it is foreseen to study $B_s^0$ oscillations and measure the mixing parameter \dms. The measurement of this parameter is an important input for the determination of other $B_s^0$ parameters from e.g. the decay $B_s^0 \to J/\Psi \phi$, in particular the lifetime difference $\Delta \Gamma_s$ and the weak phase $\phi_s$. The hadronic $B_s^0$ decay modes to $D_s^- \pi^+$ and $D_{s}^{-} a_{1}^{+}$ with \hbox{$D_{s}^{-}\to \phi(\to K^{+}K^{-})\pi^{-}$} and $a_1^+ \to \rho^0 (\to \pi^+ \pi^-) \pi^+$ are used in this analysis to evaluate the number of signal events expected for an integrated luminosity of \mbox{30~\ifb} and to determine the \dms \ sensitivity using the amplitude fit method. Four classes of trigger scenarios are considered, each with different trigger conditions: a single-muon trigger, a di-muon trigger, a muon-electron trigger and a combined muon-lepton trigger. This analysis, performed on Monte Carlo particle-level, shows that besides the single-muon trigger the combined muon-lepton trigger has the largest potential to be used at the ATLAS detector. |
id | cern-1005811 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2006 |
record_format | invenio |
spelling | cern-10058112021-04-18T19:39:59Zhttp://cds.cern.ch/record/1005811engJussel, PStahl, TEpp, BKneringer, EWalkowiak, WStudy of muon trigger scenarios for the measurement of $B_{s}^{0}$ oscillations in the channels $B_{s}^{0}\to D_{s}^{-}\pi^{+}$ and $B_{s}^{0}\to D_{s}^{-}a_1^{+}$Detectors and Experimental TechniquesWithin the ATLAS $B$-physics programme it is foreseen to study $B_s^0$ oscillations and measure the mixing parameter \dms. The measurement of this parameter is an important input for the determination of other $B_s^0$ parameters from e.g. the decay $B_s^0 \to J/\Psi \phi$, in particular the lifetime difference $\Delta \Gamma_s$ and the weak phase $\phi_s$. The hadronic $B_s^0$ decay modes to $D_s^- \pi^+$ and $D_{s}^{-} a_{1}^{+}$ with \hbox{$D_{s}^{-}\to \phi(\to K^{+}K^{-})\pi^{-}$} and $a_1^+ \to \rho^0 (\to \pi^+ \pi^-) \pi^+$ are used in this analysis to evaluate the number of signal events expected for an integrated luminosity of \mbox{30~\ifb} and to determine the \dms \ sensitivity using the amplitude fit method. Four classes of trigger scenarios are considered, each with different trigger conditions: a single-muon trigger, a di-muon trigger, a muon-electron trigger and a combined muon-lepton trigger. This analysis, performed on Monte Carlo particle-level, shows that besides the single-muon trigger the combined muon-lepton trigger has the largest potential to be used at the ATLAS detector.ATL-PHYS-PUB-2007-003ATL-COM-PHYS-2006-091CERN-ATL-PHYS-PUB-2007-003oai:cds.cern.ch:10058112006-12-18 |
spellingShingle | Detectors and Experimental Techniques Jussel, P Stahl, T Epp, B Kneringer, E Walkowiak, W Study of muon trigger scenarios for the measurement of $B_{s}^{0}$ oscillations in the channels $B_{s}^{0}\to D_{s}^{-}\pi^{+}$ and $B_{s}^{0}\to D_{s}^{-}a_1^{+}$ |
title | Study of muon trigger scenarios for the measurement of $B_{s}^{0}$ oscillations in the channels $B_{s}^{0}\to D_{s}^{-}\pi^{+}$ and $B_{s}^{0}\to D_{s}^{-}a_1^{+}$ |
title_full | Study of muon trigger scenarios for the measurement of $B_{s}^{0}$ oscillations in the channels $B_{s}^{0}\to D_{s}^{-}\pi^{+}$ and $B_{s}^{0}\to D_{s}^{-}a_1^{+}$ |
title_fullStr | Study of muon trigger scenarios for the measurement of $B_{s}^{0}$ oscillations in the channels $B_{s}^{0}\to D_{s}^{-}\pi^{+}$ and $B_{s}^{0}\to D_{s}^{-}a_1^{+}$ |
title_full_unstemmed | Study of muon trigger scenarios for the measurement of $B_{s}^{0}$ oscillations in the channels $B_{s}^{0}\to D_{s}^{-}\pi^{+}$ and $B_{s}^{0}\to D_{s}^{-}a_1^{+}$ |
title_short | Study of muon trigger scenarios for the measurement of $B_{s}^{0}$ oscillations in the channels $B_{s}^{0}\to D_{s}^{-}\pi^{+}$ and $B_{s}^{0}\to D_{s}^{-}a_1^{+}$ |
title_sort | study of muon trigger scenarios for the measurement of $b_{s}^{0}$ oscillations in the channels $b_{s}^{0}\to d_{s}^{-}\pi^{+}$ and $b_{s}^{0}\to d_{s}^{-}a_1^{+}$ |
topic | Detectors and Experimental Techniques |
url | http://cds.cern.ch/record/1005811 |
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