The gravitino coupling to broken gauge theories applied to the MSSM

Details The gravitino coupling to broken gauge theories applied to the MSSM The gravitino coupling to broken gauge theories applied to the MSSM

2010-06-29

arxiv.org/abs/1006.5570v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, 4 figures

Scientific paper

We consider gravitino couplings in theories with broken gauge symmetries. In particular, we compute the single gravitino production cross section in W+ W- fusion processes. Despite recent claims to the contrary, we show that this process is always subdominant to gluon fusion processes in the high energy limit. The full calculation is performed numerically; however, we give analytic expressions for the cross section in the supersymmetric and electroweak limits. We also confirm these results with the use of the effective theory of goldstino interactions.

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