Proton Stability in Leptoquark Models

Details Proton Stability in Leptoquark Models Proton Stability in Leptoquark Models

2002-10-11

arxiv.org/abs/hep-ph/0210187v2

Phys.Lett. B562 (2003) 104-108

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 1 table

Scientific paper

10.1016/S0370-2693(03)00544-6

We show that in generic leptoquark (LQ) extensions of the standard model
lepton and baryon numbers are broken at the level of renormalizable operators.
In particular, this may cause fast proton decay unless the leptoquarks are
heavy enough. We derive stringent bounds for the 1st generation LQ masses and
couplings from the proton stability constraints.

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