Measurements of $A_{CP}(B^0\rightarrow K^+ \pi^-)$ and $A_{CP}(B_s\rightarrow \pi^+ K^-)$ at LHCb

The LHCb experiment is designed to perform flavour physics measurements at the Large Hadron Collider. Using data collected during the 2010 run, we reconstruct a sample of $H_b\rightarrow h^+h'^-$ decays, where $H_b$ can be either a $B^0$ meson, a $B_s^0$ meson or a $\Lambda_b$ baryon, while $h$...

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Detalles Bibliográficos
Autor principal: Perazzini, Stefano
Lenguaje:eng
Publicado: 2011
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1393/ncc/i2011-11072-y
http://cds.cern.ch/record/1357102
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author Perazzini, Stefano
author_facet Perazzini, Stefano
author_sort Perazzini, Stefano
collection CERN
description The LHCb experiment is designed to perform flavour physics measurements at the Large Hadron Collider. Using data collected during the 2010 run, we reconstruct a sample of $H_b\rightarrow h^+h'^-$ decays, where $H_b$ can be either a $B^0$ meson, a $B_s^0$ meson or a $\Lambda_b$ baryon, while $h$ and $h^\prime$ stand for $\pi$, $K$ or $p$. We provide preliminary values of the direct $\mathcal{CP}$ asymmetries of the neutral $B^0$ and $B_s^0$ mesons $A_{CP} (B^0\rightarrow K^+\pi^-) = -0.074 \pm 0.033\mathrm{(stat.)} \pm 0.008\mathrm{(syst.)}$ and $A_{CP}(B_s^0\rightarrow\pi^+K^-)=0.15 \pm 0.19\mathrm{(stat.)} \pm 0.02\mathrm{(syst.)}$.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
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spelling cern-13571022023-03-14T16:49:03Zdoi:10.1393/ncc/i2011-11072-yhttp://cds.cern.ch/record/1357102engPerazzini, StefanoMeasurements of $A_{CP}(B^0\rightarrow K^+ \pi^-)$ and $A_{CP}(B_s\rightarrow \pi^+ K^-)$ at LHCbParticle Physics - ExperimentThe LHCb experiment is designed to perform flavour physics measurements at the Large Hadron Collider. Using data collected during the 2010 run, we reconstruct a sample of $H_b\rightarrow h^+h'^-$ decays, where $H_b$ can be either a $B^0$ meson, a $B_s^0$ meson or a $\Lambda_b$ baryon, while $h$ and $h^\prime$ stand for $\pi$, $K$ or $p$. We provide preliminary values of the direct $\mathcal{CP}$ asymmetries of the neutral $B^0$ and $B_s^0$ mesons $A_{CP} (B^0\rightarrow K^+\pi^-) = -0.074 \pm 0.033\mathrm{(stat.)} \pm 0.008\mathrm{(syst.)}$ and $A_{CP}(B_s^0\rightarrow\pi^+K^-)=0.15 \pm 0.19\mathrm{(stat.)} \pm 0.02\mathrm{(syst.)}$.The LHCb experiment is designed to perform flavour physics measurements at the Large Hadron Collider. Using data collected during the 2010 run, we reconstruct a sample of $H_b\rightarrow h^+h'^-$ decays, where $H_b$ can be either a $B^0$ meson, a $B_s^0$ meson or a $\Lambda_b$ baryon, while $h$ and $h^\prime$ stand for $\pi$, $K$ or $p$. We provide preliminary values of the direct $\mathcal{CP}$ asymmetries of the neutral $B^0$ and $B_s^0$ mesons $A_{CP} (B^0\rightarrow K^+\pi^-) = -0.074 \pm 0.033\mathrm{(stat.)} \pm 0.008\mathrm{(syst.)}$ and $A_{CP}(B_s^0\rightarrow\pi^+K^-)=0.15 \pm 0.19\mathrm{(stat.)} \pm 0.02\mathrm{(syst.)}$.arXiv:1106.1197oai:cds.cern.ch:13571022011-06-08
spellingShingle Particle Physics - Experiment
Perazzini, Stefano
Measurements of $A_{CP}(B^0\rightarrow K^+ \pi^-)$ and $A_{CP}(B_s\rightarrow \pi^+ K^-)$ at LHCb
title Measurements of $A_{CP}(B^0\rightarrow K^+ \pi^-)$ and $A_{CP}(B_s\rightarrow \pi^+ K^-)$ at LHCb
title_full Measurements of $A_{CP}(B^0\rightarrow K^+ \pi^-)$ and $A_{CP}(B_s\rightarrow \pi^+ K^-)$ at LHCb
title_fullStr Measurements of $A_{CP}(B^0\rightarrow K^+ \pi^-)$ and $A_{CP}(B_s\rightarrow \pi^+ K^-)$ at LHCb
title_full_unstemmed Measurements of $A_{CP}(B^0\rightarrow K^+ \pi^-)$ and $A_{CP}(B_s\rightarrow \pi^+ K^-)$ at LHCb
title_short Measurements of $A_{CP}(B^0\rightarrow K^+ \pi^-)$ and $A_{CP}(B_s\rightarrow \pi^+ K^-)$ at LHCb
title_sort measurements of $a_{cp}(b^0\rightarrow k^+ \pi^-)$ and $a_{cp}(b_s\rightarrow \pi^+ k^-)$ at lhcb
topic Particle Physics - Experiment
url https://dx.doi.org/10.1393/ncc/i2011-11072-y
http://cds.cern.ch/record/1357102
work_keys_str_mv AT perazzinistefano measurementsofacpb0rightarrowkpiandacpbsrightarrowpikatlhcb

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