The Bs -> Ds pi and Bs -> Ds K selections

The decay channels Bs->Dspi and Bs->DsK will be used to extract the physics parameters $\Delta m_s$, $\Delta\Gamma_s$ and $\gamma + \phi_s$. Simulation studies based on Monte Carlo samples produced in 2004 and 2005 show that a total of 140k Bs->Dspi and 6.2k Bs->DsK events are expected t...

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Detalles Bibliográficos
Autores principales: Borel, J, Nicolas, L, Schneider, O, Van Hunen, J
Lenguaje:eng
Publicado: 2007
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1027381
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author Borel, J
Nicolas, L
Schneider, O
Van Hunen, J
author_facet Borel, J
Nicolas, L
Schneider, O
Van Hunen, J
author_sort Borel, J
collection CERN
description The decay channels Bs->Dspi and Bs->DsK will be used to extract the physics parameters $\Delta m_s$, $\Delta\Gamma_s$ and $\gamma + \phi_s$. Simulation studies based on Monte Carlo samples produced in 2004 and 2005 show that a total of 140k Bs->Dspi and 6.2k Bs->DsK events are expected to be triggered, reconstructed and selected in $2fb^{-1}$ of data ($10^7s$ of data taking at a luminosity of $2\times 10^{32}\unit{cm^{-2}s^{-1}}$). The combinatorial background-over-signal ratio originating from inclusive bb events is expected to be $B/S < 0.05~\at~90\%$ CL~for Bs->Dspi whereas, for Bs->DsK, the limit is $B/S < 0.18~\at~90\%$~CL.
id cern-1027381
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
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spelling cern-10273812019-09-30T06:29:59Zhttp://cds.cern.ch/record/1027381engBorel, JNicolas, LSchneider, OVan Hunen, JThe Bs -> Ds pi and Bs -> Ds K selectionsDetectors and Experimental TechniquesThe decay channels Bs->Dspi and Bs->DsK will be used to extract the physics parameters $\Delta m_s$, $\Delta\Gamma_s$ and $\gamma + \phi_s$. Simulation studies based on Monte Carlo samples produced in 2004 and 2005 show that a total of 140k Bs->Dspi and 6.2k Bs->DsK events are expected to be triggered, reconstructed and selected in $2fb^{-1}$ of data ($10^7s$ of data taking at a luminosity of $2\times 10^{32}\unit{cm^{-2}s^{-1}}$). The combinatorial background-over-signal ratio originating from inclusive bb events is expected to be $B/S < 0.05~\at~90\%$ CL~for Bs->Dspi whereas, for Bs->DsK, the limit is $B/S < 0.18~\at~90\%$~CL.LHCb-2007-017CERN-LHCb-2007-017LPHE Note 2007-03oai:cds.cern.ch:10273812007-04-17
spellingShingle Detectors and Experimental Techniques
Borel, J
Nicolas, L
Schneider, O
Van Hunen, J
The Bs -> Ds pi and Bs -> Ds K selections
title The Bs -> Ds pi and Bs -> Ds K selections
title_full The Bs -> Ds pi and Bs -> Ds K selections
title_fullStr The Bs -> Ds pi and Bs -> Ds K selections
title_full_unstemmed The Bs -> Ds pi and Bs -> Ds K selections
title_short The Bs -> Ds pi and Bs -> Ds K selections
title_sort bs -> ds pi and bs -> ds k selections
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1027381
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