A Test for Light Gravitino Scenario at the LHC

Details A Test for Light Gravitino Scenario at the LHC A Test for Light Gravitino Scenario at the LHC

2009-05-25

arxiv.org/abs/0905.4034v1

Phys.Lett.B680:351-354,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 figures

Scientific paper

10.1016/j.physletb.2009.09.019

Supersymmetric (SUSY) standard models in which the lightest SUSY particle (LSP) is an ultralight gravitino (m_{3/2}=O(1) eV) are very attractive, since they are free from the cosmological gravitino problems. If the neutralino is the next lightest SUSY particle (NLSP), it decays into a photon and the gravitino in collider experiments. We propose a simple test for the lightness of gravitino at the LHC.

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