New (g-2)_{\mu} Constraints on Light-Gravitino Models
High Energy Physics - Phenomenology
2007-05-23 v1
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.
Cite
@article{arxiv.hep-ph/9704439,
title = {New (g-2)_{\mu} Constraints on Light-Gravitino Models},
author = {T. Li and J. Lopez and D. Nanopoulos},
journal= {arXiv preprint arXiv:hep-ph/9704439},
year = {2007}
}
Comments
6 pages, LaTex