Observation of CP Violation in $B^\pm \to DK^\pm$ Decays at LHCb

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 two-body final states: $K^\pm \pi^\mp$, $K^+K^−$ and $\pi^+\pi^-$. Using 1.0 fb$^{−1}$ of LHCb data, measurements of several observables are made including the first observation o...

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Detalles Bibliográficos
Autor principal: Johnson, Daniel
Lenguaje:eng
Publicado: 2012
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1491133
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author Johnson, Daniel
author_facet Johnson, Daniel
author_sort Johnson, Daniel
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 two-body final states: $K^\pm \pi^\mp$, $K^+K^−$ and $\pi^+\pi^-$. Using 1.0 fb$^{−1}$ of LHCb data, measurements of several observables are made including the first observation of the suppressed mode $B^\pm \to [\pi^\pm K^\mp] DK^\pm$. CP violation in $B^\pm \to DK^\pm$ decays is observed with $5.8\sigma$ significance. We also comment on the prospects for similar measurements using different final states.
id cern-1491133
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14911332019-09-30T06:29:59Zhttp://cds.cern.ch/record/1491133engJohnson, DanielObservation of CP Violation in $B^\pm \to DK^\pm$ Decays at LHCbParticle 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 two-body final states: $K^\pm \pi^\mp$, $K^+K^−$ and $\pi^+\pi^-$. Using 1.0 fb$^{−1}$ of LHCb data, measurements of several observables are made including the first observation of the suppressed mode $B^\pm \to [\pi^\pm K^\mp] DK^\pm$. CP violation in $B^\pm \to DK^\pm$ decays is observed with $5.8\sigma$ significance. We also comment on the prospects for similar measurements using different final states.LHCb-PROC-2012-052CERN-LHCb-PROC-2012-052oai:cds.cern.ch:14911332012-10-31
spellingShingle Particle Physics - Experiment
Johnson, Daniel
Observation of CP Violation in $B^\pm \to DK^\pm$ Decays at LHCb
title Observation of CP Violation in $B^\pm \to DK^\pm$ Decays at LHCb
title_full Observation of CP Violation in $B^\pm \to DK^\pm$ Decays at LHCb
title_fullStr Observation of CP Violation in $B^\pm \to DK^\pm$ Decays at LHCb
title_full_unstemmed Observation of CP Violation in $B^\pm \to DK^\pm$ Decays at LHCb
title_short Observation of CP Violation in $B^\pm \to DK^\pm$ Decays at LHCb
title_sort observation of cp violation in $b^\pm \to dk^\pm$ decays at lhcb
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1491133
work_keys_str_mv AT johnsondaniel observationofcpviolationinbpmtodkpmdecaysatlhcb

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