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- W319031668 abstract "1. Department of Physics, Ben-Gurion Univ. of the Negev, Beer-Sheva 84105, Israelguendel@bgu.ac.il , mahary@bgu.ac.il2. Institute of Nuclear Research and Nuclear Energy, Bulg. Acad. Sci., So a 1784, Bulgarianissimov@inrne.bas.bg , svetlana@inrne.bas.bgAbstractWe present a qualitatively new mechanism for dynamical spontaneous breakdown of supersymmetry.Speci cally, we construct a modi ed formulation of standard minimal N = 1 supergravity. The modi ca-tion is based on an idea worked out in detail in previous publications by some of us, where we proposed anew formulation of (non-supersymmetric) gravity theories employing an alternative volume form (volumeelement, or generally-covariant integration measure) in the pertinent Lagrangian action, de ned in termsof auxiliary (pure-gauge) elds instead of the standard Riemannian metric volume form. Invariance un-der supersymmetry of the new modi ed N = 1 supergravity action is preserved due to the addition ofan appropriate compensating antisymmetric tensor gauge eld. This new formalism naturally triggersthe appearance of a dynamically generated cosmological constant as an arbitrary integration constantwhich signi es a spontaneous (dynamical) breaking of supersymmetry. Furthermore, applying the sameformalism to anti-de Sitter supergravity allows us to appropriately choose the above mentioned arbitraryintegration constant so as to obtain simultaneously a very small e ective observable cosmological con-stant as well as a large gravitino mass as required by modern cosmological scenarios for slowly expandinguniverse of today." @default.
- W319031668 created "2016-06-24" @default.
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- W319031668 date "2014-04-18" @default.
- W319031668 modified "2023-09-23" @default.
- W319031668 title "A New Mechanism of Dynamical Spontaneous Breaking of Supersymmetry" @default.
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