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Consistent gravitino couplings in non-supersymmetric strings

E. Dudas·J. Mourad
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Abstract

The massless spectrum of the ten dimensional USp(32) type I string has an N=1 supergravity multiplet coupled to non-supersymmetric matter. This raises the question of the consistency of the gravitino interactions. We resolve this apparent puzzle by arguing for the existence of a local supersymmetry which is non-linearly realised in the open sector. We determine the leading order low energy effective Lagrangian. Similar results are expected to apply to lower dimensional type I models where supergravity is coupled to non-supersymmetric branes.

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E. Dudas, J. Mourad. 2001-02-27. Consistent gravitino couplings in non-supersymmetric strings. https://doi.org/10.1016/s0370-2693(01)00777-8

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