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The convergence of the gauge couplings atE GUT and above: Consequences forα 3(M Z) and SUSY breaking

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Il Nuovo Cimento A (1965-1970)

Summary

We work out an iterative solution of the evolution equations forα 1,α 2,α 3 in the Minimal SupersymmetricSU(5) Grand Unified model with the condition that the gauge couplings should converge smoothly towardsE GUT and should not separate aboveE GUT. The work is done at two levels of theoretical accuracy: one loop and two loops. Improved accuracy favours high values ofα 3(M Z) with respect to the world average.

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Authors and Affiliations

  1. CERN, Geneva, Switzerland

    F. Anselmo, L. Cifarelli, A. Peterman & A. Zichichi

  2. Physics Department, University of Pisa, Pisa, Italy

    L. Cifarelli

  3. INFN, Bologna, Italy

    L. Cifarelli

  4. World Laboratory, Lausanne, Switzerland

    A. Peterman

  5. Centre de Physique Théorique, CNRS-Luminy, Marseille, France

    A. Peterman

Authors
  1. F. Anselmo
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  2. L. Cifarelli
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  3. A. Peterman
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  4. A. Zichichi
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Anselmo, F., Cifarelli, L., Peterman, A. et al. The convergence of the gauge couplings atE GUT and above: Consequences forα 3(M Z) and SUSY breaking. Nuov Cim A 105, 1025–1044 (1992). https://doi.org/10.1007/BF02730842

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  • DOI: https://doi.org/10.1007/BF02730842

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