Peccei-Quinn symmetry and suppression of nucleon decay rates in SUSY GUTs
Apr, 19925 pages
Published in:
- Phys.Lett.B 291 (1992) 263-267
- Published: 1992
Report number:
- TU-399
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Abstract: (Elsevier)
We construct a supersymmetric grand unified model with a Peccei-Quinn symmetry. The dimension-five operators for baryon-number violation are suppressed by the Peccei-Quinn symmetry. We show that the dimension-five operators can be made much below the upper bound from the present nucleon-decay experiments, keeping superparticles at ⪷ 1 TeV which may be necessity for the supersymmetry to be a solution to the mass hierarchy problem. However, the dimension-five operators cannot be arbitrarily small due to the requirement of the unification of gauge coupling constants.- grand unified theory: SU(5)
- supersymmetry
- symmetry: U(1)
- nucleon: decay
- decay: nucleon
- baryon number: violation
- operator: higher-dimensional
- dimension: 5
- renormalization group
- numerical calculations
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