Search for $CP$ violation in $D^0\rightarrow \pi^-\pi^+\pi^0$ decays at LHCb

The LHCb experiment has recorded the world's largest sample of charmed meson decays. This paper presents a study of a $D^0$ meson decaying into a final state containing a neutral pion in LHCb. The search for $CP$ violation exploits a novel model-independent unbinned technique to assign a $p$-va...

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Autor principal: Chen, Shanzhen
Lenguaje:eng
Publicado: SISSA 2015
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.22323/1.220.0014
http://cds.cern.ch/record/1996429
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author Chen, Shanzhen
author_facet Chen, Shanzhen
author_sort Chen, Shanzhen
collection CERN
description The LHCb experiment has recorded the world's largest sample of charmed meson decays. This paper presents a study of a $D^0$ meson decaying into a final state containing a neutral pion in LHCb. The search for $CP$ violation exploits a novel model-independent unbinned technique to assign a $p$-value for the no $CP$ violation hypothesis. With a data sample size exceeding that of previous measurements by almost an order of magnitude the world's best sensitivity is obtained. The $p$-value of no CP violation hypothesis given data of $D^0\rightarrow \pi^-\pi^+\pi^0$ decay analysed is found to be $(2.6 \pm 0.5)\times 10^-2$.
id cern-1996429
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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spelling cern-19964292023-03-14T18:26:20Zdoi:10.22323/1.220.0014http://cds.cern.ch/record/1996429engChen, ShanzhenSearch for $CP$ violation in $D^0\rightarrow \pi^-\pi^+\pi^0$ decays at LHCbParticle Physics - ExperimentThe LHCb experiment has recorded the world's largest sample of charmed meson decays. This paper presents a study of a $D^0$ meson decaying into a final state containing a neutral pion in LHCb. The search for $CP$ violation exploits a novel model-independent unbinned technique to assign a $p$-value for the no $CP$ violation hypothesis. With a data sample size exceeding that of previous measurements by almost an order of magnitude the world's best sensitivity is obtained. The $p$-value of no CP violation hypothesis given data of $D^0\rightarrow \pi^-\pi^+\pi^0$ decay analysed is found to be $(2.6 \pm 0.5)\times 10^-2$.The LHCb experiment has recorded the world's largest sample of charmed meson decays. This paper presents a study of a $D^0$ meson decaying into a final state containing a neutral pion in LHCb. The search for $CP$ violation exploits a novel model-independent unbinned technique to assign a $p$-value for the no $CP$ violation hypothesis. With a data sample size exceeding that of previous measurements by almost an order of magnitude the world's best sensitivity is obtained. The $p$-value of no CP violation hypothesis given data of $D^0\rightarrow \pi^-\pi^+\pi^0$ decay analysed is found to be $(2.6 \pm 0.5)\times 10^-2$.SISSAarXiv:1503.00160oai:cds.cern.ch:19964292015-02-28
spellingShingle Particle Physics - Experiment
Chen, Shanzhen
Search for $CP$ violation in $D^0\rightarrow \pi^-\pi^+\pi^0$ decays at LHCb
title Search for $CP$ violation in $D^0\rightarrow \pi^-\pi^+\pi^0$ decays at LHCb
title_full Search for $CP$ violation in $D^0\rightarrow \pi^-\pi^+\pi^0$ decays at LHCb
title_fullStr Search for $CP$ violation in $D^0\rightarrow \pi^-\pi^+\pi^0$ decays at LHCb
title_full_unstemmed Search for $CP$ violation in $D^0\rightarrow \pi^-\pi^+\pi^0$ decays at LHCb
title_short Search for $CP$ violation in $D^0\rightarrow \pi^-\pi^+\pi^0$ decays at LHCb
title_sort search for $cp$ violation in $d^0\rightarrow \pi^-\pi^+\pi^0$ decays at lhcb
topic Particle Physics - Experiment
url https://dx.doi.org/10.22323/1.220.0014
http://cds.cern.ch/record/1996429
work_keys_str_mv AT chenshanzhen searchforcpviolationind0rightarrowpipipi0decaysatlhcb

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