String Theory, Supersymmetry, Unification, and All That
The standard model of particle physics (see the article by Gaillard, Grannis, and Sciulli in this volume) is a beautiful theory that accounts for all known phenomena up to energies of order 100 GeV. Its consistency relies on the intricacies of quantum field theory (see Wilczek’s article), and its agreement with experiment is spectacular. However, there are many open problems with the standard model. In particular, we would like to know what lies beyond the standard model. What is the physics at energies above 100 GeV?
KeywordsString Theory Modulus Space Open String Supersymmetry Breaking Heterotic String
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