Measurement of the spectral function for the $τ^-\to K^-K_Sν_τ$ decay in BABAR experiment

The decay $\tau^{-}\to K^{-}K_S\nu_{\tau}$ has been studied using $430\times10^6$ $e^+e^-\to \tau^+\tau^-$ events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and studied with the BABAR detector. The mass spectrum of the $K^{-}K_S$ system has been measured and the s...

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Main Author: Sergey I. Serednyakov on behalf of the BABAR collaboration
Format: Article
Language:English
Published: SciPost 2019-02-01
Series:SciPost Physics Proceedings
Online Access:https://scipost.org/SciPostPhysProc.1.046
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author Sergey I. Serednyakov on behalf of the BABAR collaboration
author_facet Sergey I. Serednyakov on behalf of the BABAR collaboration
author_sort Sergey I. Serednyakov on behalf of the BABAR collaboration
collection DOAJ
description The decay $\tau^{-}\to K^{-}K_S\nu_{\tau}$ has been studied using $430\times10^6$ $e^+e^-\to \tau^+\tau^-$ events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and studied with the BABAR detector. The mass spectrum of the $K^{-}K_S$ system has been measured and the spectral function has been obtained. The measured branching fraction ${\cal B}(\tau^{-}\to K^{-}K_S\nu_{\tau}) = (0.739\pm 0.011(\rm stat.)\pm 0.020(\rm syst.))\times 10^{-3}$ is found to be in agreement with earlier measurements.
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spelling doaj.art-2e1ddf621b874dac8171f99e5e522d0f2022-12-21T23:04:38ZengSciPostSciPost Physics Proceedings2666-40032019-02-01104610.21468/SciPostPhysProc.1.046Measurement of the spectral function for the $τ^-\to K^-K_Sν_τ$ decay in BABAR experimentSergey I. Serednyakov on behalf of the BABAR collaborationThe decay $\tau^{-}\to K^{-}K_S\nu_{\tau}$ has been studied using $430\times10^6$ $e^+e^-\to \tau^+\tau^-$ events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and studied with the BABAR detector. The mass spectrum of the $K^{-}K_S$ system has been measured and the spectral function has been obtained. The measured branching fraction ${\cal B}(\tau^{-}\to K^{-}K_S\nu_{\tau}) = (0.739\pm 0.011(\rm stat.)\pm 0.020(\rm syst.))\times 10^{-3}$ is found to be in agreement with earlier measurements.https://scipost.org/SciPostPhysProc.1.046
spellingShingle Sergey I. Serednyakov on behalf of the BABAR collaboration
Measurement of the spectral function for the $τ^-\to K^-K_Sν_τ$ decay in BABAR experiment
SciPost Physics Proceedings
title Measurement of the spectral function for the $τ^-\to K^-K_Sν_τ$ decay in BABAR experiment
title_full Measurement of the spectral function for the $τ^-\to K^-K_Sν_τ$ decay in BABAR experiment
title_fullStr Measurement of the spectral function for the $τ^-\to K^-K_Sν_τ$ decay in BABAR experiment
title_full_unstemmed Measurement of the spectral function for the $τ^-\to K^-K_Sν_τ$ decay in BABAR experiment
title_short Measurement of the spectral function for the $τ^-\to K^-K_Sν_τ$ decay in BABAR experiment
title_sort measurement of the spectral function for the τ to k k sν τ decay in babar experiment
url https://scipost.org/SciPostPhysProc.1.046
work_keys_str_mv AT sergeyiserednyakovonbehalfofthebabarcollaboration measurementofthespectralfunctionforthettokksntdecayinbabarexperiment