New (g-2)_(μ) Constraints on Light-Gravitino Models
classification
✦ hep-ph
keywords
gravitinomodelscontributionsupergravityboundsconstraintsenhancedfinite
read the original abstract
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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