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Higher-Derivative Chiral Superfield Actions Coupled to N=1 Supergravity

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons26307

Koehn,  Michael
String Cosmology, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons16239

Lehners,  Jean-Luc
String Cosmology, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Volltexte (frei zugänglich)

1207.3798
(Preprint), 303KB

PRD86_085019.pdf
(beliebiger Volltext), 236KB

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Zitation

Koehn, M., Lehners, J.-L., & Ovrut, B. A. (2012). Higher-Derivative Chiral Superfield Actions Coupled to N=1 Supergravity. Physical Review D, 86: 085019. doi:10.1103/PhysRevD.86.085019.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-0D0F-C
Zusammenfassung
We construct N=1 supergravity extensions of scalar field theories with higher-derivative kinetic terms. Special attention is paid to the auxiliary fields, whose elimination leads not only to corrections to the kinetic terms, but to new expressions for the potential energy as well. For example, a potential energy can be generated even in the absence of a superpotential. Our formalism allows one to write a supergravity extension of any higher-derivative scalar field theory and, therefore, has applications to both particle physics and cosmological model building. As an illustration, we couple the higher-derivative DBI action describing a 3-brane in 6-dimensions to N=1 supergravity. This displays a number of new features-- including the fact that, in the regime where the higher-derivative kinetic terms become important, the potential tends to be everywhere negative.