Neutrino mixing and the pattern of supersymmetry breaking - INSPIRE

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Neutrino mixing and the pattern of supersymmetry breaking

Mar, 1999

12 pages

Published in:

Phys.Lett.B 459 (1999) 171-178

e-Print:

hep-ph/9904219 [hep-ph]

DOI:

10.1016/S0370-2693(99)00634-6

Report number:

DESY-99-021

View in:

ADS Abstract Service

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Abstract: (Elsevier)

We study the implications of a large ν μ – ν τ mixing angle on lepton flavour violating radiative transitions in supersymmetric extensions of the standard model. The transition rates are calculated to leading order in ϵ , the parameter which characterizes the flavour mixing. The uncertainty of the predicted rates is discussed in detail. For models with modular invariance the branching ratio BR ( μ → eγ ) mostly exceeds the experimental upper limit. In models with radiatively induced flavour mixing the predicted range includes the upper limit, if the Yukawa couplings in the lepton sector are large, as favoured by Yukawa coupling unification.

Note:

12 pages, 2 figures, used axodraw.sty, to be published in Physics Letters B

neutrino: mixing angle
neutrino/mu
neutrino/tau
supersymmetry: symmetry breaking
violation: flavor
supersymmetry: superfield
symmetry: SU(5) x U(1)
symmetry: family
invariance: modular
interference: flavor

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