Non-universal soft scalar masses in superstring theories

  title={Non-universal soft scalar masses in superstring theories},
  author={Tatsuo C. Kobayashi and Daijiro Suematsu and Kiyonori Yamada and Y. Yamagishi},
  journal={Physics Letters B},
Abstract We study soft scalar masses in comparison with gaugino masses in 4-dimensional string models. In general non-universal soft masses are derived in orbifold models. We give conditions on modular weights which lead to a large non-degeneracy in the soft scalar mass spectrum. This non-universality is applied to the unification of gauge coupling constants in the minimal string model. 

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