Grand Unification in Simple Supergravity
Sep, 19827 pages
Published in:
- Phys.Lett.B 121 (1983) 123-129
- Published: 1983
Report number:
- CERN-TH-3418
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Abstract: (Elsevier)
We discuss aspects of grand unified theories (GUTs) combined with N =1 local supersymmetry, interpreting the general form of simple supergravity theory as a phenomenological effective lagrangian applicable at energies less than the Planck mass. We consider light fermion masses, baryon decay and a possible resolution of the QCD vacuum angle θ problem in this general framework. We propose two mechanisms for weak symmetry breaking based on radiative corrections originating from supergravity effects, notably by a direct gaugino mass in theories with non-minimal coupling to N =1 supergravity. We give a specific example of a GUT employing this mechanism.- GRAND UNIFIED THEORY: SU(5)
- SUPERSYMMETRY
- FIELD THEORY: EFFECTIVE LAGRANGIANS
- FERMION: MASS
- MASS: FERMION
- BARYON: DECAY
- DECAY: BARYON
- QUANTUM CHROMODYNAMICS: VACUUM STATE
- RADIATIVE CORRECTION
- SPONTANEOUS SYMMETRY BREAKING
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