Electromagnetic suppression of the decay mu --> e+gamma

Due to large QED anomalous dimensions of the electric and magnetic dipole operators, the rate of the rare muon decay mu --> e+gamma is suppressed by the factor [ 1- 8 alpha/pi ln(Lambda/m_mu) ], independent of the physics responsible for the lepton-flavor violation, except for the scale Lambda at...

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Detalles Bibliográficos
Autores principales: Czarnecki, Andrzej, Jankowski, Ernest
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.65.113004
http://cds.cern.ch/record/505626
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author Czarnecki, Andrzej
Jankowski, Ernest
author_facet Czarnecki, Andrzej
Jankowski, Ernest
author_sort Czarnecki, Andrzej
collection CERN
description Due to large QED anomalous dimensions of the electric and magnetic dipole operators, the rate of the rare muon decay mu --> e+gamma is suppressed by the factor [ 1- 8 alpha/pi ln(Lambda/m_mu) ], independent of the physics responsible for the lepton-flavor violation, except for the scale Lambda at which it occurs. For Lambda = 100 -- 1000 GeV, the resulting decrease of the rate amounts to about 12 -- 17 %.
id cern-505626
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
record_format invenio
spelling cern-5056262023-03-14T17:02:29Zdoi:10.1103/PhysRevD.65.113004http://cds.cern.ch/record/505626engCzarnecki, AndrzejJankowski, ErnestElectromagnetic suppression of the decay mu --> e+gammaParticle Physics - PhenomenologyDue to large QED anomalous dimensions of the electric and magnetic dipole operators, the rate of the rare muon decay mu --> e+gamma is suppressed by the factor [ 1- 8 alpha/pi ln(Lambda/m_mu) ], independent of the physics responsible for the lepton-flavor violation, except for the scale Lambda at which it occurs. For Lambda = 100 -- 1000 GeV, the resulting decrease of the rate amounts to about 12 -- 17 %.Due to large QED anomalous dimensions of the electric and magnetic dipole operators, the rate of the rare muon decay mu --> e+gamma is suppressed by the factor [ 1- 8 alpha/pi ln(Lambda/m_mu) ], independent of the physics responsible for the lepton-flavor violation, except for the scale Lambda at which it occurs. For Lambda = 100 -- 1000 GeV, the resulting decrease of the rate amounts to about 12 -- 17 %.hep-ph/0106237ALBERTA-THY-06-01BNL-HET-01-26ALBERTA-THY-2001-06-01BNL-HET-2001-26oai:cds.cern.ch:5056262001-06-21
spellingShingle Particle Physics - Phenomenology
Czarnecki, Andrzej
Jankowski, Ernest
Electromagnetic suppression of the decay mu --> e+gamma
title Electromagnetic suppression of the decay mu --> e+gamma
title_full Electromagnetic suppression of the decay mu --> e+gamma
title_fullStr Electromagnetic suppression of the decay mu --> e+gamma
title_full_unstemmed Electromagnetic suppression of the decay mu --> e+gamma
title_short Electromagnetic suppression of the decay mu --> e+gamma
title_sort electromagnetic suppression of the decay mu --> e+gamma
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.65.113004
http://cds.cern.ch/record/505626
work_keys_str_mv AT czarneckiandrzej electromagneticsuppressionofthedecaymuegamma
AT jankowskiernest electromagneticsuppressionofthedecaymuegamma

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