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The strong coupling from ALEPH tau decays
The strong coupling from ALEPH tau decays. We use the publically available non-strange spectral function from ALEPH tau decays to critically analyze the different determinations of $\alpha_s(m^{2}_{\tau}$) that can be found in the literature and the numerical impact of their possible weaknesses. We...
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| Lenguaje: | eng |
| Publicado: |
2017
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| Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysbps.2016.12.027 http://cds.cern.ch/record/2291432 |
| _version_ | 1780956430362214400 |
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| author | Rodríguez Sánchez, Antonio |
| author_facet | Rodríguez Sánchez, Antonio |
| author_sort | Rodríguez Sánchez, Antonio |
| collection | CERN |
| description | The strong coupling from ALEPH tau decays. We use the publically available non-strange spectral function from ALEPH tau decays to critically analyze the different determinations of $\alpha_s(m^{2}_{\tau}$) that can be found in the literature and the numerical impact of their possible weaknesses. We also introduce some novel approaches. We find that perturbative uncertainties dominate. Our results with different approaches are very stable. Our final value is $\alpha_s(m^{2}_{\tau})=0.328\pm0.013$. |
| id | oai-inspirehep.net-1518240 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2017 |
| record_format | invenio |
| spelling | oai-inspirehep.net-15182402019-09-30T06:29:59Zdoi:10.1016/j.nuclphysbps.2016.12.027http://cds.cern.ch/record/2291432engRodríguez Sánchez, AntonioThe strong coupling from ALEPH tau decaysParticle Physics - ExperimentThe strong coupling from ALEPH tau decays. We use the publically available non-strange spectral function from ALEPH tau decays to critically analyze the different determinations of $\alpha_s(m^{2}_{\tau}$) that can be found in the literature and the numerical impact of their possible weaknesses. We also introduce some novel approaches. We find that perturbative uncertainties dominate. Our results with different approaches are very stable. Our final value is $\alpha_s(m^{2}_{\tau})=0.328\pm0.013$.oai:inspirehep.net:15182402017 |
| spellingShingle | Particle Physics - Experiment Rodríguez Sánchez, Antonio The strong coupling from ALEPH tau decays |
| title | The strong coupling from ALEPH tau decays |
| title_full | The strong coupling from ALEPH tau decays |
| title_fullStr | The strong coupling from ALEPH tau decays |
| title_full_unstemmed | The strong coupling from ALEPH tau decays |
| title_short | The strong coupling from ALEPH tau decays |
| title_sort | strong coupling from aleph tau decays |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/j.nuclphysbps.2016.12.027 http://cds.cern.ch/record/2291432 |
| work_keys_str_mv | AT rodriguezsanchezantonio thestrongcouplingfromalephtaudecays AT rodriguezsanchezantonio strongcouplingfromalephtaudecays |