Implications of nonuniversality of soft terms in supersymmetric grand unified theories

Jun, 1994
20 pages
Published in:
  • Nucl.Phys.B 435 (1995) 115-128
e-Print:
Report number:
  • TUM-HEP-201-94,
  • MPI-PHT-94-39

Citations per year

19942002201020182025051015
Abstract:
Most discussions of supersymmetric grand unified theories assume universality of the soft supersymmetry breaking terms at the grand scale. We point out that the behaviour of these theories might change significantly in the presence of non--universal soft terms. Particularly in SO(10)--like models with a large value of tanβ\beta we observe a decisive change of predictions, allowing the presence of relatively light gauginos as well as small supersymmetric corrections to the b--quark mass. Some results remain rather stable, including the μ\mu--M1/2M_{1/2} correlation. Models with small tanβ\beta seem to be less affected by non--universality which mainly leads to the new possibility of small m0m_{0} (i.e. the squark and slepton soft mass parameter), excluded in the universal case.
  • grand unified theory
  • supersymmetry: symmetry breaking
  • universality
  • renormalization group
  • numerical calculations
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