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arXiv · hep-th/9801003

Effective interactions of a light gravitino

Fabio Zwirner
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Abstract

We review some recent results on the effective interactions of a light gravitino with ordinary particles. In particular, we discuss on a simple example a novel aspect of the low-energy theorems for broken supersymmetry: in the effective lagrangian describing the goldstino couplings to matter, there are terms bilinear in the goldstino that, already at the lowest non-trivial order, are not entirely controlled by the supersymmetry-breaking scale, and introduce additional free parameters. We conclude by mentioning some phenomenological implications, including a lower bound on the gravitino mass from collider data.

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Fabio Zwirner. 1998-01-26. Effective interactions of a light gravitino. https://doi.org/10.1002/(sici)1521-3978(199901)47%3A1%2F3%3C325%3A%3Aaid-prop325%3E3.0.co%3B2-s

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