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arXiv · 1501.05518

A New Venue of Spontaneous Supersymmetry Breaking in Supergravity

Eduardo Guendelman·Emil Nissimov·Svetlana Pacheva·Mahary Vasihoun
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Abstract

We present a qualitatively new mechanism for dynamical spontaneous breakdown of supersymmetry in supergravity. Specifically, we construct a modified formulation of standard minimal N=1 supergravity as well as of anti-de Sitter supergravity in terms of a non-Riemannian spacetime volume-form (generally covariant integration measure density). The new supergravity formalism naturally triggers the appearance of a dynamically generated cosmological constant as an arbitrary integration constant which signifies spontaneous (dynamical) breaking of supersymmetry. Applying the new formalism to anti-de Sitter supergravity allows us to appropriately choose the above mentioned arbitrary integration constant so as to obtain simultaneously a very small effective observable cosmological constant as well as a large physical gravitino mass as required by modern cosmological scenarios for slowly expanding universe of the present epoch.

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Eduardo Guendelman, Emil Nissimov, Svetlana Pacheva, Mahary Vasihoun. 2015-01-22. A New Venue of Spontaneous Supersymmetry Breaking in Supergravity. https://arxiv.org/abs/1501.05518

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