期刊
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS
卷 65, 期 12, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/prop.201700073
关键词
Higher curvature supergravity; nilpotent superfileds; non-linerly realized supersymmetry; supergravity
资金
- Padua University [CPDA144437]
- CERN TH-Department
- INFN [IS CSN4-GSS-PI]
- ERC [320045]
- DFG
- European Research Council (ERC) [320045] Funding Source: European Research Council (ERC)
We focus on non-linear realizations of local supersymmetry as obtained by using constrained superfields in supergravity. New constraints, beyond those of rigid supersymmetry, are obtained whenever curvature multiplets are affected as well as higher derivative interactions are introduced. In particular, a new constraint, which removes a very massive gravitino is introduced, and in the rigid limit it merely reduces to an explicit supersymmetry breaking. Higher curvature supergravities free of ghosts and instabilities are also obtained in this way. Finally, we consider direct coupling of the goldstino multiplet to the super Gauss-Bonnet multiplet and discuss the emergence of a new scalar degree of freedom.
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