Higher Dimensional Operators and Low Energy Left-Right Symmetry

Details Higher Dimensional Operators and Low Energy Left-Right Symmetry Higher Dimensional Operators and Low Energy Left-Right Symmetry

1993-06-11

arxiv.org/abs/hep-ph/9306257v1

Phys.Lett.B313:83-88,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX 6 pages,UH-511-765-93

Scientific paper

10.1016/0370-2693(93)91194-R

We consider higher dimensional operators due to quantum gravity or spontaneous compactification of extra dimensions in Kaluza-Klein type theory and their effect in the $SO(10)$ Lagrangian. These operators change the boundary conditions at the unification scale. As a result one can allow left-right symmetry to survive till very low energy (as low as $\sim$ TeV) for a wide range of values for the coupling of these higher dimensional operators and still make the theory compatible with the latest values of $\sin^2 \theta_W$ and $\alpha_s$ derived from LEP. We consider both non-supersymmetric and supersymmetric cases with standard higgses. Proton lifetime is very large in these theories.

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