The Measurement of the Muon's Anomalous Magnetic Moment Isn't

Recently the Muon (g-2) Collaboration announced a new measurement of the muon's anomalous magnetic moment [hep-ex/0208001]. More precisely, however, what has been measured is the muon's anomalous spin precession frequency. We point out that this receives contributions from both the muon�...

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Detalles Bibliográficos
Autores principales: Feng, Jonathan L., Matchev, Konstantin T., Shadmi, Yael
Lenguaje:eng
Publicado: 2002
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(03)00047-9
http://cds.cern.ch/record/576048
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author Feng, Jonathan L.
Matchev, Konstantin T.
Shadmi, Yael
author_facet Feng, Jonathan L.
Matchev, Konstantin T.
Shadmi, Yael
author_sort Feng, Jonathan L.
collection CERN
description Recently the Muon (g-2) Collaboration announced a new measurement of the muon's anomalous magnetic moment [hep-ex/0208001]. More precisely, however, what has been measured is the muon's anomalous spin precession frequency. We point out that this receives contributions from both the muon's anomalous magnetic and electric dipole moments, and the reported data and all existing constraints cannot distinguish between the two.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2002
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spelling cern-5760482023-03-14T18:42:43Zdoi:10.1016/S0370-2693(03)00047-9http://cds.cern.ch/record/576048engFeng, Jonathan L.Matchev, Konstantin T.Shadmi, YaelThe Measurement of the Muon's Anomalous Magnetic Moment Isn'tParticle Physics - PhenomenologyRecently the Muon (g-2) Collaboration announced a new measurement of the muon's anomalous magnetic moment [hep-ex/0208001]. More precisely, however, what has been measured is the muon's anomalous spin precession frequency. We point out that this receives contributions from both the muon's anomalous magnetic and electric dipole moments, and the reported data and all existing constraints cannot distinguish between the two.Recent results announced as measurements of the muon's anomalous magnetic moment are in fact measurements of the muon's anomalous spin precession frequency. This precession frequency receives contributions from both the muon's anomalous magnetic and electric dipole moments. We note that all existing data cannot resolve this ambiguity, and the current deviation from standard model predictions may equally well be interpreted as evidence for new physics in the muon's anomalous magnetic moment, new physics in the muon's electric dipole moment, or both.hep-ph/0208106UCI-TR-2002-29CERN-TH-2002-187CERN-TH-2002-187UCI-TR-2002-29oai:cds.cern.ch:5760482002-08-12
spellingShingle Particle Physics - Phenomenology
Feng, Jonathan L.
Matchev, Konstantin T.
Shadmi, Yael
The Measurement of the Muon's Anomalous Magnetic Moment Isn't
title The Measurement of the Muon's Anomalous Magnetic Moment Isn't
title_full The Measurement of the Muon's Anomalous Magnetic Moment Isn't
title_fullStr The Measurement of the Muon's Anomalous Magnetic Moment Isn't
title_full_unstemmed The Measurement of the Muon's Anomalous Magnetic Moment Isn't
title_short The Measurement of the Muon's Anomalous Magnetic Moment Isn't
title_sort measurement of the muon's anomalous magnetic moment isn't
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(03)00047-9
http://cds.cern.ch/record/576048
work_keys_str_mv AT fengjonathanl themeasurementofthemuonsanomalousmagneticmomentisnt
AT matchevkonstantint themeasurementofthemuonsanomalousmagneticmomentisnt
AT shadmiyael themeasurementofthemuonsanomalousmagneticmomentisnt
AT fengjonathanl measurementofthemuonsanomalousmagneticmomentisnt
AT matchevkonstantint measurementofthemuonsanomalousmagneticmomentisnt
AT shadmiyael measurementofthemuonsanomalousmagneticmomentisnt

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