Determining the Mass for a Light Gravitino

Details Determining the Mass for a Light Gravitino Determining the Mass for a Light Gravitino

2007-05-02

arxiv.org/abs/0705.0219v1

Phys.Lett.B651:44-48,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 12 figures

Scientific paper

10.1016/j.physletb.2007.05.063

Gauge mediated supersymmetry breaking scenarios with an ultra-light gravitino
of mass m_{3/2}=1-10 eV are very interesting, since there is no cosmological
gravitino problem. We propose a new experimental determination of the gravitino
mass for such an ultra-light gravitino, by measuring a branching ratio of two
decay modes of sleptons.

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