Determination of the $CP$-violating phase $\phi_s$ in $B0s \to J\psi \Phi$ decays

The determination of the CP-violating phase $\phi_{s}$ in $B^{0}_{s}\rightarrow J/\psi \phi$ decays is one of the key goals of the LHCb experiment. Its value is predicted to be very small in the Standard Model. However it can be significantly enhanced by contributions from effects of new physics. Th...

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Autor principal: Batozskaya, Varvara
Lenguaje:eng
Publicado: 2016
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.5506/APhysPolB.47.1611
http://cds.cern.ch/record/2147915
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author Batozskaya, Varvara
author_facet Batozskaya, Varvara
author_sort Batozskaya, Varvara
collection CERN
description The determination of the CP-violating phase $\phi_{s}$ in $B^{0}_{s}\rightarrow J/\psi \phi$ decays is one of the key goals of the LHCb experiment. Its value is predicted to be very small in the Standard Model. However it can be significantly enhanced by contributions from effects of new physics. The most precise measurements of $\phi_{s}$ and $\Delta\Gamma_{s}$ to date are presented. Using a dataset corresponding to 3 fb$^{-1}$ collected at LHCb during 2011-2012 they are measured to be $\phi_{s}=-0.010\pm0.039$ rad and ${\Delta\Gamma_{s}}=0.0805\pm0.0091\pm0.0032$ ps$^{-1}$. $\text {PACS numbers: 11.30.Hv, 13.20.Fc, 14.40.Lb}$
id cern-2147915
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
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spelling cern-21479152019-09-30T06:29:59Zdoi:10.5506/APhysPolB.47.1611http://cds.cern.ch/record/2147915engBatozskaya, VarvaraDetermination of the $CP$-violating phase $\phi_s$ in $B0s \to J\psi \Phi$ decaysParticle Physics - ExperimentThe determination of the CP-violating phase $\phi_{s}$ in $B^{0}_{s}\rightarrow J/\psi \phi$ decays is one of the key goals of the LHCb experiment. Its value is predicted to be very small in the Standard Model. However it can be significantly enhanced by contributions from effects of new physics. The most precise measurements of $\phi_{s}$ and $\Delta\Gamma_{s}$ to date are presented. Using a dataset corresponding to 3 fb$^{-1}$ collected at LHCb during 2011-2012 they are measured to be $\phi_{s}=-0.010\pm0.039$ rad and ${\Delta\Gamma_{s}}=0.0805\pm0.0091\pm0.0032$ ps$^{-1}$. $\text {PACS numbers: 11.30.Hv, 13.20.Fc, 14.40.Lb}$LHCb-PROC-2016-010CERN-LHCb-PROC-2016-010oai:cds.cern.ch:21479152016-01-08
spellingShingle Particle Physics - Experiment
Batozskaya, Varvara
Determination of the $CP$-violating phase $\phi_s$ in $B0s \to J\psi \Phi$ decays
title Determination of the $CP$-violating phase $\phi_s$ in $B0s \to J\psi \Phi$ decays
title_full Determination of the $CP$-violating phase $\phi_s$ in $B0s \to J\psi \Phi$ decays
title_fullStr Determination of the $CP$-violating phase $\phi_s$ in $B0s \to J\psi \Phi$ decays
title_full_unstemmed Determination of the $CP$-violating phase $\phi_s$ in $B0s \to J\psi \Phi$ decays
title_short Determination of the $CP$-violating phase $\phi_s$ in $B0s \to J\psi \Phi$ decays
title_sort determination of the $cp$-violating phase $\phi_s$ in $b0s \to j\psi \phi$ decays
topic Particle Physics - Experiment
url https://dx.doi.org/10.5506/APhysPolB.47.1611
http://cds.cern.ch/record/2147915
work_keys_str_mv AT batozskayavarvara determinationofthecpviolatingphasephisinb0stojpsiphidecays

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