Enhancing lepton flavour violation in the supersymmetric inverse seesaw beyond the dipole contribution
Abstract
In minimal supersymmetric models the Z-penguin usually provides sub-dominant contributions to charged lepton flavour violating observables. In this study, we consider the supersymmetric inverse seesaw in which the non-minimal particle content allows for dominant contributions of the Z-penguin to several lepton flavour violating observables. In particular, and due to the low-scale (TeV) seesaw, the penguin contribution to, for instance, Br( μ → 3 e) and μ - e conversion in nuclei, allows to render some of these observables within future sensitivity reach. Moreover, we show that in this framework, the Z-penguin exhibits the same non-decoupling behaviour which had previously been identified in flavour violating Higgs decays in the Minimal Supersymmetric Standard Model.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- September 2012
- DOI:
- 10.1007/JHEP09(2012)015
- arXiv:
- arXiv:1206.6497
- Bibcode:
- 2012JHEP...09..015A
- Keywords:
-
- Neutrino Physics;
- Supersymmetric Standard Model;
- High Energy Physics - Phenomenology
- E-Print:
- 29 pages, 9 figures, 4 tables