Update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays

An update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays is presented. Compared to the 2005 ALEPH publication, the main improvement results from the use of a new method to unfold the measured mass spectra from detector effects. This procedure also corrects a previous problem...

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Detalles Bibliográficos
Autores principales: Davier, Michel, Höcker, Andreas, Malaescu, Bogdan, Yuan, Chang-Zheng, Zhang, Zhiqing
Lenguaje:eng
Publicado: 2013
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-014-2803-9
http://cds.cern.ch/record/1633956
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author Davier, Michel
Höcker, Andreas
Malaescu, Bogdan
Yuan, Chang-Zheng
Zhang, Zhiqing
author_facet Davier, Michel
Höcker, Andreas
Malaescu, Bogdan
Yuan, Chang-Zheng
Zhang, Zhiqing
author_sort Davier, Michel
collection CERN
description An update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays is presented. Compared to the 2005 ALEPH publication, the main improvement results from the use of a new method to unfold the measured mass spectra from detector effects. This procedure also corrects a previous problem in the correlations between the unfolded mass bins. Results from QCD studies and for the evaluation of the hadronic vacuum polarisation contribution to the anomalous muon magnetic moment are derived using the new spectral functions. They are found in agreement with published results based on the previous set of spectral functions.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
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spelling cern-16339562022-08-10T20:36:33Zdoi:10.1140/epjc/s10052-014-2803-9http://cds.cern.ch/record/1633956engDavier, MichelHöcker, AndreasMalaescu, BogdanYuan, Chang-ZhengZhang, ZhiqingUpdate of the ALEPH non-strange spectral functions from hadronic $\tau$ decaysParticle Physics - ExperimentAn update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays is presented. Compared to the 2005 ALEPH publication, the main improvement results from the use of a new method to unfold the measured mass spectra from detector effects. This procedure also corrects a previous problem in the correlations between the unfolded mass bins. Results from QCD studies and for the evaluation of the hadronic vacuum polarisation contribution to the anomalous muon magnetic moment are derived using the new spectral functions. They are found in agreement with published results based on the previous set of spectral functions.An update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays is presented. Compared to the 2005 ALEPH publication, the main improvement is related to the use of a new method to unfold the measured mass spectra from detector effects. This procedure also corrects a previous problem in the correlations between the unfolded mass bins. Results from QCD studies and for the evaluation of the hadronic vacuum polarisation contribution to the anomalous muon magnetic moment are derived using the new spectral functions. They are found in agreement with published results based on the previous set of spectral functions.arXiv:1312.1501LAL-13-390LAL 13-390oai:cds.cern.ch:16339562013-12-05
spellingShingle Particle Physics - Experiment
Davier, Michel
Höcker, Andreas
Malaescu, Bogdan
Yuan, Chang-Zheng
Zhang, Zhiqing
Update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays
title Update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays
title_full Update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays
title_fullStr Update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays
title_full_unstemmed Update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays
title_short Update of the ALEPH non-strange spectral functions from hadronic $\tau$ decays
title_sort update of the aleph non-strange spectral functions from hadronic $\tau$ decays
topic Particle Physics - Experiment
url https://dx.doi.org/10.1140/epjc/s10052-014-2803-9
http://cds.cern.ch/record/1633956
work_keys_str_mv AT daviermichel updateofthealephnonstrangespectralfunctionsfromhadronictaudecays
AT hockerandreas updateofthealephnonstrangespectralfunctionsfromhadronictaudecays
AT malaescubogdan updateofthealephnonstrangespectralfunctionsfromhadronictaudecays
AT yuanchangzheng updateofthealephnonstrangespectralfunctionsfromhadronictaudecays
AT zhangzhiqing updateofthealephnonstrangespectralfunctionsfromhadronictaudecays

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