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First observation of the suppressed ADS modes $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D K^\pm$ and $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D \pi^\pm$

An analysis of $B^{\pm}\to DK^{\pm}$ and $B^{\pm}\to D\pi^{\pm}$ decays is presented where the $D$ meson is reconstructed in the four-body final state $K^{\pm}\pi^{\mp} \pi^+ \pi^-$. Exploiting $1.0{\rm \,fb}^{-1}$ of LHCb data, we observe for the first time the suppressed ADS modes $B^{\pm}\to [\pi...

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Detalles Bibliográficos
Autor principal: The LHCb Collaboration
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:http://cds.cern.ch/record/1478393
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author The LHCb Collaboration
author_facet The LHCb Collaboration
author_sort The LHCb Collaboration
collection CERN
description An analysis of $B^{\pm}\to DK^{\pm}$ and $B^{\pm}\to D\pi^{\pm}$ decays is presented where the $D$ meson is reconstructed in the four-body final state $K^{\pm}\pi^{\mp} \pi^+ \pi^-$. Exploiting $1.0{\rm \,fb}^{-1}$ of LHCb data, we observe for the first time the suppressed ADS modes $B^{\pm}\to [\pi^{\pm} K^{\mp}\pi^+\pi^-]_D K^{\pm}$ and $B^{\pm}\to [\pi^{\pm} K^{\mp} \pi^+\pi^- ]_D\pi^{\pm}$ with a significance of $5.1\sigma$ and $>10\sigma$, respectively. Measurements of several observables, including $CP$ asymmetries, are also performed.
id cern-1478393
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14783932019-09-30T06:29:59Zhttp://cds.cern.ch/record/1478393engThe LHCb CollaborationFirst observation of the suppressed ADS modes $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D K^\pm$ and $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D \pi^\pm$Particle Physics - ExperimentAn analysis of $B^{\pm}\to DK^{\pm}$ and $B^{\pm}\to D\pi^{\pm}$ decays is presented where the $D$ meson is reconstructed in the four-body final state $K^{\pm}\pi^{\mp} \pi^+ \pi^-$. Exploiting $1.0{\rm \,fb}^{-1}$ of LHCb data, we observe for the first time the suppressed ADS modes $B^{\pm}\to [\pi^{\pm} K^{\mp}\pi^+\pi^-]_D K^{\pm}$ and $B^{\pm}\to [\pi^{\pm} K^{\mp} \pi^+\pi^- ]_D\pi^{\pm}$ with a significance of $5.1\sigma$ and $>10\sigma$, respectively. Measurements of several observables, including $CP$ asymmetries, are also performed.LHCb-CONF-2012-030CERN-LHCb-CONF-2012-030oai:cds.cern.ch:14783932012-09-17
spellingShingle Particle Physics - Experiment
The LHCb Collaboration
First observation of the suppressed ADS modes $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D K^\pm$ and $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D \pi^\pm$
title First observation of the suppressed ADS modes $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D K^\pm$ and $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D \pi^\pm$
title_full First observation of the suppressed ADS modes $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D K^\pm$ and $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D \pi^\pm$
title_fullStr First observation of the suppressed ADS modes $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D K^\pm$ and $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D \pi^\pm$
title_full_unstemmed First observation of the suppressed ADS modes $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D K^\pm$ and $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D \pi^\pm$
title_short First observation of the suppressed ADS modes $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D K^\pm$ and $B^\pm \to [\pi^\pm K^\mp \pi^+\pi^-]_D \pi^\pm$
title_sort first observation of the suppressed ads modes $b^\pm \to [\pi^\pm k^\mp \pi^+\pi^-]_d k^\pm$ and $b^\pm \to [\pi^\pm k^\mp \pi^+\pi^-]_d \pi^\pm$
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1478393
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