Peccei-Quinn symmetry and suppression of nucleon decay rates in SUSY GUTs

Apr, 1992
5 pages
Published in:
  • Phys.Lett.B 291 (1992) 263-267
  • Published: 1992
Report number:
  • TU-399

Citations per year

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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