Charged Lepton Flavor Violating Decays: Leading Logarithmic Approximation versus Full RG Results

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dc.creatorPetcov, S. T.
dc.creatorProfumo, S.
dc.creatorTakanishi, Y.
dc.creatorYaguna, C. E.
dc.date2003-06-21
dc.date2003-12-05
dc.date.accessioned2026-07-07T11:31:26Z
dc.date.available2026-07-07T11:31:26Z
dc.descriptionIn the context of the minimal supersymmetric extension of the Standard Model with the right-handed Majorana neutrinos, we study lepton flavor violating processes including full renormalization group running effects. We systematically compare our results with the commonly used leading logarithmic approximation, resorting to a ``best fit'' approach to fix all the high energy Yukawa matrices. We find significant deviations in large regions of the SUSY parameter space, which we outline in detail. We also give, within this setting, some results on the cosmo-phenomenologically preferred stau coannihilation region. Finally, we propose a parametrization, in terms of the SUSY input parameters, of the common SUSY mass appearing in the leading log and mass insertion approximation formula for the charged lepton flavor violating decay rates, which fits our full renormalization group results with high precision.
dc.description27 pages, 8 figures, latex; v2: references added, minor corrections, results and conclusions unchanged; v3: published version
dc.identifierhttps://arxiv.org/abs/hep-ph/0306195
dc.identifierhttp://arxiv.org/abs/hep-ph/0306195
dc.identifierNucl.Phys.B676:453-480,2004
dc.identifierdoi:10.1016/j.nuclphysb.2003.10.020
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197268
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCharged Lepton Flavor Violating Decays: Leading Logarithmic Approximation versus Full RG Results
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