New (g-2)_μ Constraints on Light-Gravitino Models

Details New (g-2)_μ Constraints on Light-Gravitino Models New (g-2)_μ Constraints on Light-Gravitino Models

1997-04-29

arxiv.org/abs/hep-ph/9704439v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, LaTex

Scientific paper

We show that the gravitino contribution to (g-2)_{\mu} is finite in many
popular supergravity models, including no-scale supergravity and string and
M-theory models. This contribution is greatly enhanced for very light gravitino
masses, and leads to new upper bounds on the ratio of the smuon to the
gravitino mass.

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