See-saw and supersymmetry or exact R-parity

We show how the renormalizable see-saw mechanism in the context of supersymmetry and spontaneously broken B−L symmetry implies exact R-parity at all energies. We argue that supersymmetry plays an important role in providing a “canonical” form for the see-saw, in particular in grand unified theories...

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Bibliographic Details
Published in:Physics letters. B 1999, Vol.459 (4), p.557-562
Main Authors: Aulakh, Charanjit S., Melfo, Alejandra, Rašin, Andrija, Senjanović, Goran
Format: Article
Language:English
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Summary:We show how the renormalizable see-saw mechanism in the context of supersymmetry and spontaneously broken B−L symmetry implies exact R-parity at all energies. We argue that supersymmetry plays an important role in providing a “canonical” form for the see-saw, in particular in grand unified theories that solve the doublet-triplet splitting problem via the Dimopoulos–Wilczek mechanism.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(99)00708-X