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PDF uncertainties in the determination of the W boson mass and of the effective lepton mixing angle at the LHC

The precision measurement of the W boson mass allows to perform stringent consistency tests of the Standard Model by means of global electroweak fits. The accurate determination of the W boson mass is one of the legacy results of the Tevatron, where the experimental accuracy is such that $M_W$ is no...

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Autor principal: Rojo, Juan
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:http://cds.cern.ch/record/1550058
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author Rojo, Juan
author_facet Rojo, Juan
author_sort Rojo, Juan
collection CERN
description The precision measurement of the W boson mass allows to perform stringent consistency tests of the Standard Model by means of global electroweak fits. The accurate determination of the W boson mass is one of the legacy results of the Tevatron, where the experimental accuracy is such that $M_W$ is now limited by theoretical uncertainties related to the parton distributions of the proton. In this contribution, we show how to quantify the impact of PDF uncertainties in the measurement of $M_W$ at the Tevatron and the LHC by means of a template method, and study both the use of the W transverse mass and the lepton pT kinematical distributions to generate these templates. We also present preliminary results on the quantification of the PDF uncertainties in the determination of the effective lepton mixing angle at the LHC, based on the same template method as for the W mass determination
id cern-1550058
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
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spelling cern-15500582023-03-14T18:28:28Zhttp://cds.cern.ch/record/1550058engRojo, JuanPDF uncertainties in the determination of the W boson mass and of the effective lepton mixing angle at the LHCParticle Physics - PhenomenologyThe precision measurement of the W boson mass allows to perform stringent consistency tests of the Standard Model by means of global electroweak fits. The accurate determination of the W boson mass is one of the legacy results of the Tevatron, where the experimental accuracy is such that $M_W$ is now limited by theoretical uncertainties related to the parton distributions of the proton. In this contribution, we show how to quantify the impact of PDF uncertainties in the measurement of $M_W$ at the Tevatron and the LHC by means of a template method, and study both the use of the W transverse mass and the lepton pT kinematical distributions to generate these templates. We also present preliminary results on the quantification of the PDF uncertainties in the determination of the effective lepton mixing angle at the LHC, based on the same template method as for the W mass determinationThe precision measurement of the W boson mass allows to perform stringent consistency tests of the Standard Model by means of global electroweak fits. The accurate determination of the W boson mass is one of the legacy results of the Tevatron, where the experimental accuracy is such that $M_W$ is now limited by theoretical uncertainties related to the parton distributions of the proton. In this contribution, we show how to quantify the impact of PDF uncertainties in the measurement of $M_W$ at the Tevatron and the LHC by means of a template method, and study both the use of the W transverse mass and the lepton pT kinematical distributions to generate these templates. We also present preliminary results on the quantification of the PDF uncertainties in the determination of the effective lepton mixing angle at the LHC, based on the same template method as for the W mass determinationarXiv:1305.4833oai:cds.cern.ch:15500582013-05-21
spellingShingle Particle Physics - Phenomenology
Rojo, Juan
PDF uncertainties in the determination of the W boson mass and of the effective lepton mixing angle at the LHC
title PDF uncertainties in the determination of the W boson mass and of the effective lepton mixing angle at the LHC
title_full PDF uncertainties in the determination of the W boson mass and of the effective lepton mixing angle at the LHC
title_fullStr PDF uncertainties in the determination of the W boson mass and of the effective lepton mixing angle at the LHC
title_full_unstemmed PDF uncertainties in the determination of the W boson mass and of the effective lepton mixing angle at the LHC
title_short PDF uncertainties in the determination of the W boson mass and of the effective lepton mixing angle at the LHC
title_sort pdf uncertainties in the determination of the w boson mass and of the effective lepton mixing angle at the lhc
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/1550058
work_keys_str_mv AT rojojuan pdfuncertaintiesinthedeterminationofthewbosonmassandoftheeffectiveleptonmixingangleatthelhc