Large N Expansion and Softly Broken Supersymmetry
classification
✦ hep-ph
hep-th
keywords
brokendifferencedimensionsmasssupersymmetricaccidentallyalwaysbreaking
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We examine the supersymmetric non-linear O(N) sigma model with a soft breaking term. In two dimensions, we found that the mass difference between supersymmetric partner fields vanishes accidentally. In three dimensions, the mass difference is observed but O(N) symmetry is always broken also in the strong coupling region.
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