Higher Dimensional Operator Corrections to the Goldstino Goldberger-Treiman Vertices

Details Higher Dimensional Operator Corrections to the Goldstino Goldberger-Treiman Vertices Higher Dimensional Operator Corrections to the Goldstino Goldberger-Treiman Vertices

1998-12-21

arxiv.org/abs/hep-ph/9812451v2

Eur.Phys.J.C13:365-369,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 4 figures, typos corrected, version to appear in Eur. Phys. J. C

Scientific paper

10.1007/s100520000256

The goldstino-matter interactions given by the Goldberger-Treiman relations can receive higher dimensional operator corrections of $ O(q^{2}/M^{2})$, where $M$ denotes the mass of the mediators through which SUSY breaking is transmitted. These corrections in the gauge mediated SUSY breaking models arise from loop diagrams, and an explicit calculation of such corrections is presented. It is emphasized that the Goldberger-Treiman vertices are valid only below the mediator scale and at higher energies goldstinos decouple from the MSSM fields. The implication of this fact on gravitino cosmology in GMSB models is mentioned.

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