Measurement of $\gamma$ from $B \to DK$ decays at LHCb

We report results from the first measurements of the CKM angle $\gamma$ using $B \to DK$ decays with the LHCb experiment. Three well established methods are used to extract the $CP$ observables. The updated measurement of $\gamma$ in the three-body $D^0$ Dalitz space results in $\gamma$ = (57 $\pm$...

Descripción completa

Detalles Bibliográficos
Autor principal: Schlupp, Maximilian
Lenguaje:eng
Publicado: 2013
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1051/epjconf/20136015002
http://cds.cern.ch/record/1562031
_version_ 1780930709927493632
author Schlupp, Maximilian
author_facet Schlupp, Maximilian
author_sort Schlupp, Maximilian
collection CERN
description We report results from the first measurements of the CKM angle $\gamma$ using $B \to DK$ decays with the LHCb experiment. Three well established methods are used to extract the $CP$ observables. The updated measurement of $\gamma$ in the three-body $D^0$ Dalitz space results in $\gamma$ = (57 $\pm$ 16)° at 68%CL and $\gamma \in$ [43.9, 89.5]° at 95%CL. This represents the most precise $\gamma$ values directly measured by a single experiment. Furthermore, a new time-dependent approach using $B^0_s \to D^{\pm}_s K^{\mp}$ decays is used for the first time to measure $CP$ observables and future prospects for $\gamma$ at LHCb are given.
id cern-1562031
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
record_format invenio
spelling cern-15620312023-03-14T19:41:02Zdoi:10.1051/epjconf/20136015002http://cds.cern.ch/record/1562031engSchlupp, MaximilianMeasurement of $\gamma$ from $B \to DK$ decays at LHCbParticle Physics - ExperimentWe report results from the first measurements of the CKM angle $\gamma$ using $B \to DK$ decays with the LHCb experiment. Three well established methods are used to extract the $CP$ observables. The updated measurement of $\gamma$ in the three-body $D^0$ Dalitz space results in $\gamma$ = (57 $\pm$ 16)° at 68%CL and $\gamma \in$ [43.9, 89.5]° at 95%CL. This represents the most precise $\gamma$ values directly measured by a single experiment. Furthermore, a new time-dependent approach using $B^0_s \to D^{\pm}_s K^{\mp}$ decays is used for the first time to measure $CP$ observables and future prospects for $\gamma$ at LHCb are given.We report results from the first measurements of the CKM angle $\gamma$ using $B\rightarrow DK$ decays with the LHCb experiment. Three well established methods are used to extract the CP observables. The updated measurement of $\gamma$ in the three-body $D^0$ Dalitz space results in $\gamma = (57\pm 16)^\circ$. When combining the observables from all \bdk studies, the best fit value for $\gamma \in [0,180]^\circ$ is $\gamma = 67.2^\circ$ with $\gamma \in [55.1,79.1]^\circ$ at 68%CL and $\gamma \in [43.9, 89.5]^\circ$ at 95%CL. This represents the most precise $\gamma$ values directly measured by a single experiment. Furthermore, a new time-dependent approach using $B_s \rightarrow D_s K$ decays is used for the first time to measure CP observables and future prospects for $\gamma$ at LHCb are given.arXiv:1307.7018LHCB-PROC-2013-042CERN-LHCB-PROC-2013-042LHCB-PROC-2013-042-CERN-LHCb-PROC-2013-042LHCb-PROC-2013-042oai:cds.cern.ch:15620312013-07-12
spellingShingle Particle Physics - Experiment
Schlupp, Maximilian
Measurement of $\gamma$ from $B \to DK$ decays at LHCb
title Measurement of $\gamma$ from $B \to DK$ decays at LHCb
title_full Measurement of $\gamma$ from $B \to DK$ decays at LHCb
title_fullStr Measurement of $\gamma$ from $B \to DK$ decays at LHCb
title_full_unstemmed Measurement of $\gamma$ from $B \to DK$ decays at LHCb
title_short Measurement of $\gamma$ from $B \to DK$ decays at LHCb
title_sort measurement of $\gamma$ from $b \to dk$ decays at lhcb
topic Particle Physics - Experiment
url https://dx.doi.org/10.1051/epjconf/20136015002
http://cds.cern.ch/record/1562031
work_keys_str_mv AT schluppmaximilian measurementofgammafrombtodkdecaysatlhcb

Ejemplares similares