Semichirals and Four Dimensional Geometry
2015
Online
Elektronische Ressource
Semichiral (2,2) sigma models with 4d target space are discussed. A novel description in (1,1) superspace allows an analysis of possible extended supersymmetries. It is argued that a manifest semichiral realization of an extra supersymmetry is only possible for hyperk\"ahler target geometry. A semichiral formulation of the SU(2)⊗U(1) WZW model is seemingly a counterexample to this. After deriving the extra supersymmetries of this model in (1,1) superspace it is shown that they cannot be lifted to transformations of semichirals in (2,2) superspace.
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Semichirals and Four Dimensional Geometry
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Veröffentlichung: | 2015 |
Medientyp: | Elektronische Ressource |
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