On the muon anomalous magnetic moment in models with a superlight gravitino

Details On the muon anomalous magnetic moment in models with a superlight gravitino On the muon anomalous magnetic moment in models with a superlight gravitino

1999-04-16

arxiv.org/abs/hep-ph/9904367v3

JHEP 9909 (1999) 002

Physics

High Energy Physics

High Energy Physics - Phenomenology

Now 19 A4 pages, 2 figures. Expanded version to be published in JHEP. A section of final comments and other minor comments add

Scientific paper

10.1088/1126-6708/1999/09/002

We perform a general analysis of the contributions to the muon anomalous magnetic moment in models with a superlight gravitino. We discuss the interpretation and the phenomenological implications of the results. We find that present constraints on the model parameters are comparable and complementary to the ones coming from collider searches and from perturbative unitarity. However, the Brookhaven E821 experiment will probe large unexplored regions of parameter space.

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