Searches for $\Lambda^0_b$ and $\Xi^0 _b$ decays to $K^0_S p \pi^-$ and $K^0_S pK^-$ final states with first observation of the $\Lambda^0_b \to K^0_S p \pi^-$ decay

A search for previously unobserved decays of beauty baryons to the final states $K^0_S p \pi^-$ and $K^0_S pK^-$ is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb$^{-1}$ of $pp$ collisions recorded by the LHCb experiment. The $\Lambda^0_b \to K^...

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Detalles Bibliográficos
Autor principal: Silva Coutinho, R
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1752180
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author Silva Coutinho, R
author_facet Silva Coutinho, R
author_sort Silva Coutinho, R
collection CERN
description A search for previously unobserved decays of beauty baryons to the final states $K^0_S p \pi^-$ and $K^0_S pK^-$ is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb$^{-1}$ of $pp$ collisions recorded by the LHCb experiment. The $\Lambda^0_b \to K^0_S p \pi^-$ decay is observed for the first time with a significance of 8.6$\sigma$ , and a measurement is made of the $CP$ asymmetry, which is consistent with zero.
id cern-1752180
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-17521802019-09-30T06:29:59Zhttp://cds.cern.ch/record/1752180engSilva Coutinho, RSearches for $\Lambda^0_b$ and $\Xi^0 _b$ decays to $K^0_S p \pi^-$ and $K^0_S pK^-$ final states with first observation of the $\Lambda^0_b \to K^0_S p \pi^-$ decayParticle Physics - ExperimentA search for previously unobserved decays of beauty baryons to the final states $K^0_S p \pi^-$ and $K^0_S pK^-$ is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb$^{-1}$ of $pp$ collisions recorded by the LHCb experiment. The $\Lambda^0_b \to K^0_S p \pi^-$ decay is observed for the first time with a significance of 8.6$\sigma$ , and a measurement is made of the $CP$ asymmetry, which is consistent with zero.LHCb-PROC-2014-027CERN-LHCb-PROC-2014-027oai:cds.cern.ch:17521802014-08-28
spellingShingle Particle Physics - Experiment
Silva Coutinho, R
Searches for $\Lambda^0_b$ and $\Xi^0 _b$ decays to $K^0_S p \pi^-$ and $K^0_S pK^-$ final states with first observation of the $\Lambda^0_b \to K^0_S p \pi^-$ decay
title Searches for $\Lambda^0_b$ and $\Xi^0 _b$ decays to $K^0_S p \pi^-$ and $K^0_S pK^-$ final states with first observation of the $\Lambda^0_b \to K^0_S p \pi^-$ decay
title_full Searches for $\Lambda^0_b$ and $\Xi^0 _b$ decays to $K^0_S p \pi^-$ and $K^0_S pK^-$ final states with first observation of the $\Lambda^0_b \to K^0_S p \pi^-$ decay
title_fullStr Searches for $\Lambda^0_b$ and $\Xi^0 _b$ decays to $K^0_S p \pi^-$ and $K^0_S pK^-$ final states with first observation of the $\Lambda^0_b \to K^0_S p \pi^-$ decay
title_full_unstemmed Searches for $\Lambda^0_b$ and $\Xi^0 _b$ decays to $K^0_S p \pi^-$ and $K^0_S pK^-$ final states with first observation of the $\Lambda^0_b \to K^0_S p \pi^-$ decay
title_short Searches for $\Lambda^0_b$ and $\Xi^0 _b$ decays to $K^0_S p \pi^-$ and $K^0_S pK^-$ final states with first observation of the $\Lambda^0_b \to K^0_S p \pi^-$ decay
title_sort searches for $\lambda^0_b$ and $\xi^0 _b$ decays to $k^0_s p \pi^-$ and $k^0_s pk^-$ final states with first observation of the $\lambda^0_b \to k^0_s p \pi^-$ decay
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1752180
work_keys_str_mv AT silvacoutinhor searchesforlambda0bandxi0bdecaystok0sppiandk0spkfinalstateswithfirstobservationofthelambda0btok0sppidecay

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