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Título

Model discriminating power of µ-->e conversion in nuclei

AutorCirigliano, Vincenzo; Kitano, Ryuichiro; Okada, Yasuhiro; Tuzón, Paula
Palabras clave[PACS] Decays of muons
[PACS] Flavor symmetries in particles and fields
Fecha de publicación6-jul-2009
EditorAmerican Physical Society
CitaciónPhysical Review D 80(1): 013002 (2009)
ResumenWe assess the model discriminating power of a combined phenomenological analysis of mu -> e gamma and mu -> e conversion on different target nuclei, including the current hadronic uncertainties. We find that the theoretical uncertainties can be largely reduced by using input from lattice QCD, and do not constitute a limiting factor in discriminating models where one or, at most, two underlying operators (dipole, scalar, vector) provide the dominant source of lepton flavor violation. Our results show that a realistic discrimination among underlying mechanisms requires a measurement of the ratio of conversion rates at the 5% level (two light nuclei) or at the 20% level (one light and one heavy nucleus). We also illustrate these main conclusions in the context of a supersymmetric model.
Descripción13 pages, 12 figures, 1 table.-- PACS nrs.: 13.35.Bv; 11.30.Hv.-- ArXiv pre-print available at: http://arxiv.org/abs/0904.0957
Versión del editorhttp://dx.doi.org/10.1103/PhysRevD.80.013002
URIhttp://hdl.handle.net/10261/16702
DOI10.1103/PhysRevD.80.013002
ISSN1550-7998
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