Tadpole Method and Supersymmetric O(N) Sigma Model
classification
✦ hep-ph
hep-th
keywords
methodexaminemodelsigmasupersymmetrictadpolebecomecalculation
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We examine the phase structures of the supersymmetric O(N) sigma model in two and three dimensions by using the tadpole method. Using this simple method, the calculation is largely simplified and the characteristics of this theory become clear. We also examine the problem of the fictitious negative energy state.
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