Two-loop electroweak corrections to the muon g-2: a new class of hadronic contributions

We discuss, within the framework of the Standard Model, the calculation of the two-loop electroweak contributions to the anomalous magnetic moment of the muon involving triangle fermionic loops of leptons and quarks. Because of the large ratios of masses involved, these contributions are rather larg...

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Detalles Bibliográficos
Autores principales: Peris, Santiago, Perrottet, Michel, de Rafael, Eduardo
Lenguaje:eng
Publicado: 1995
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(95)00768-G
http://cds.cern.ch/record/282467
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author Peris, Santiago
Perrottet, Michel
de Rafael, Eduardo
author_facet Peris, Santiago
Perrottet, Michel
de Rafael, Eduardo
author_sort Peris, Santiago
collection CERN
description We discuss, within the framework of the Standard Model, the calculation of the two-loop electroweak contributions to the anomalous magnetic moment of the muon involving triangle fermionic loops of leptons and quarks. Because of the large ratios of masses involved, these contributions are rather large. The result we obtain differs from a previous estimate reported in the literature. The discrepancy originates in the cancellation of anomalies in $SU(3)_c\times SU(2)_L\times U(1)_Y$, a cancellation that requires the consideration of both leptons {\it and} quarks within each generation and that had been previously overlooked.
id cern-282467
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1995
record_format invenio
spelling cern-2824672023-03-12T20:49:56Zdoi:10.1016/0370-2693(95)00768-Ghttp://cds.cern.ch/record/282467engPeris, SantiagoPerrottet, Michelde Rafael, EduardoTwo-loop electroweak corrections to the muon g-2: a new class of hadronic contributionsParticle Physics - PhenomenologyParticle Physics - PhenomenologyWe discuss, within the framework of the Standard Model, the calculation of the two-loop electroweak contributions to the anomalous magnetic moment of the muon involving triangle fermionic loops of leptons and quarks. Because of the large ratios of masses involved, these contributions are rather large. The result we obtain differs from a previous estimate reported in the literature. The discrepancy originates in the cancellation of anomalies in $SU(3)_c\times SU(2)_L\times U(1)_Y$, a cancellation that requires the consideration of both leptons {\it and} quarks within each generation and that had been previously overlooked.We discuss, within the framework of the Standard Model, the calculation of the two-loop electroweak contributions to the anomalous magnetic moment of the muon involving triangle fermionic loops of leptons and quarks. Because of the large ratios of masses involved, these contributions are rather large. The result we obtain differs from a previous estimate reported in the literature. The discrepancy originates in the cancellation of anomalies in SU (3) c × SU (2) L × U (1) y , a cancellation that requires the consideration of both leptons and quarks within each generation and that had been previously overlooked.We discuss, within the framework of the Standard Model, the calculation of the two-loop electroweak contributions to the anomalous magnetic moment of the muon involving triangle fermionic loops of leptons and quarks. Because of the large ratios of masses involved, these contributions are rather large. The result we obtain differs from a previous estimate reported in the literature. The discrepancy originates in the cancellation of anomalies in $SU(3)_c\times SU(2)_L\times U(1)_Y$, a cancellation that requires the consideration of both leptons {\it and} quarks within each generation and that had been previously overlooked.hep-ph/9505405CPT-95-P-3202CERN-TH-95-141CERN-TH-95-141CPT-95-P3202oai:cds.cern.ch:2824671995-05-29
spellingShingle Particle Physics - Phenomenology
Particle Physics - Phenomenology
Peris, Santiago
Perrottet, Michel
de Rafael, Eduardo
Two-loop electroweak corrections to the muon g-2: a new class of hadronic contributions
title Two-loop electroweak corrections to the muon g-2: a new class of hadronic contributions
title_full Two-loop electroweak corrections to the muon g-2: a new class of hadronic contributions
title_fullStr Two-loop electroweak corrections to the muon g-2: a new class of hadronic contributions
title_full_unstemmed Two-loop electroweak corrections to the muon g-2: a new class of hadronic contributions
title_short Two-loop electroweak corrections to the muon g-2: a new class of hadronic contributions
title_sort two-loop electroweak corrections to the muon g-2: a new class of hadronic contributions
topic Particle Physics - Phenomenology
Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0370-2693(95)00768-G
http://cds.cern.ch/record/282467
work_keys_str_mv AT perissantiago twoloopelectroweakcorrectionstothemuong2anewclassofhadroniccontributions
AT perrottetmichel twoloopelectroweakcorrectionstothemuong2anewclassofhadroniccontributions
AT derafaeleduardo twoloopelectroweakcorrectionstothemuong2anewclassofhadroniccontributions

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