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Lepton flavor violation and seesaw symmetries
Aristizabal Sierra, Diego
2013In Hyperfine Interactions, 214, p. 55-61
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Keywords :
Charged lepton flavor violation; Seesaw mechanism
Abstract :
[en] When the standard model is extended with right-handed neutrinos the symmetries of the resulting Lagrangian are enlarged with a new global U(1)R Abelian factor. In the context of minimal seesaw models we analyze the implications of a slightly broken U(1)R symmetry on charged lepton flavor violating decays. We find, depending on the R-charge assignments, models where charged lepton flavor violating rates can be within measurable ranges. In particular, we show that in the resulting models due to the structure of the light neutrino mass matrix muon flavor violating decays are entirely determined by neutrino data (up to a normalization factor) and can be sizable in a wide right-handed neutrino mass range.
Disciplines :
Physics
Author, co-author :
Aristizabal Sierra, Diego ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules
Language :
English
Title :
Lepton flavor violation and seesaw symmetries
Publication date :
February 2013
Event name :
5th International Symposium on Symmetries in Subatomic Physics, SSP2012
Event date :
June 18-22 2012
Journal title :
Hyperfine Interactions
ISSN :
0304-3843
eISSN :
1572-9540
Publisher :
Springer Science & Business Media B.V., Dordrecht, Netherlands
Volume :
214
Pages :
55-61
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 14 January 2013

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