Motivated by an old would-be paradox we found a solution of supersymmetric CP(N-1) models in superfields. Our main target is the Kahler potential, since the superpotential term was exactly known since early 1990s.To this end we used the large-N expansion to perform a supersymmetric calculation in the leading order in 1/N. |The models considered are N= (2,2) basic CP(N-1) model and its nonminimal N= (0,2) deformation various aspects of which are being actively studied since 2007. Another extension is solving the above models in the presence of nonvanishing twisted masses.
Low-Energy Effective Action of the Supersymmetric CP(N-1) Model in the Large-N Limit.
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