Precision measurement of the form factors of the semileptonic decay $K^ \pm \to \pi^0 \ell^\pm \nu$ (Kl3)

The NA48/2 experiment at CERN collected a very large sample of charged kaon decays into multiple final states. This data allow measurements related to QCD. We obtained our final measurement of the charged kaon semileptonic decays form factors based on 4.28 million Ke3 and 2.91 million Kmu3 selected...

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Detalles Bibliográficos
Autor principal: Piandani, Roberto
Lenguaje:eng
Publicado: SISSA 2019
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.22323/1.340.0530
http://cds.cern.ch/record/2702676
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author Piandani, Roberto
author_facet Piandani, Roberto
author_sort Piandani, Roberto
collection CERN
description The NA48/2 experiment at CERN collected a very large sample of charged kaon decays into multiple final states. This data allow measurements related to QCD. We obtained our final measurement of the charged kaon semileptonic decays form factors based on 4.28 million Ke3 and 2.91 million Kmu3 selected decays, with the smallest uncertainty for Ke3 and a competitive result for Kmu3 and leading to the most precise combined Kl3 result coming from the Kaon sector that reduces the form factor uncertainty of $|V_{us} |$.
id oai-inspirehep.net-1749034
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
publisher SISSA
record_format invenio
spelling oai-inspirehep.net-17490342022-08-10T12:25:10Zdoi:10.22323/1.340.0530http://cds.cern.ch/record/2702676engPiandani, RobertoPrecision measurement of the form factors of the semileptonic decay $K^ \pm \to \pi^0 \ell^\pm \nu$ (Kl3)Particle Physics - ExperimentThe NA48/2 experiment at CERN collected a very large sample of charged kaon decays into multiple final states. This data allow measurements related to QCD. We obtained our final measurement of the charged kaon semileptonic decays form factors based on 4.28 million Ke3 and 2.91 million Kmu3 selected decays, with the smallest uncertainty for Ke3 and a competitive result for Kmu3 and leading to the most precise combined Kl3 result coming from the Kaon sector that reduces the form factor uncertainty of $|V_{us} |$.SISSAoai:inspirehep.net:17490342019
spellingShingle Particle Physics - Experiment
Piandani, Roberto
Precision measurement of the form factors of the semileptonic decay $K^ \pm \to \pi^0 \ell^\pm \nu$ (Kl3)
title Precision measurement of the form factors of the semileptonic decay $K^ \pm \to \pi^0 \ell^\pm \nu$ (Kl3)
title_full Precision measurement of the form factors of the semileptonic decay $K^ \pm \to \pi^0 \ell^\pm \nu$ (Kl3)
title_fullStr Precision measurement of the form factors of the semileptonic decay $K^ \pm \to \pi^0 \ell^\pm \nu$ (Kl3)
title_full_unstemmed Precision measurement of the form factors of the semileptonic decay $K^ \pm \to \pi^0 \ell^\pm \nu$ (Kl3)
title_short Precision measurement of the form factors of the semileptonic decay $K^ \pm \to \pi^0 \ell^\pm \nu$ (Kl3)
title_sort precision measurement of the form factors of the semileptonic decay $k^ \pm \to \pi^0 \ell^\pm \nu$ (kl3)
topic Particle Physics - Experiment
url https://dx.doi.org/10.22323/1.340.0530
http://cds.cern.ch/record/2702676
work_keys_str_mv AT piandaniroberto precisionmeasurementoftheformfactorsofthesemileptonicdecaykpmtopi0ellpmnukl3

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