Inelastic Dark Matter at DAMA, CDMS and Future Experiments

Details Inelastic Dark Matter at DAMA, CDMS and Future Experiments Inelastic Dark Matter at DAMA, CDMS and Future Experiments

2002-08-22

arxiv.org/abs/astro-ph/0208403v1

Nucl.Phys.Proc.Suppl.124:197-200,2003

Astronomy and Astrophysics

Astrophysics

4 pages; to appear in the proceedings of 5th International UCLA Symposium on Sources and Detection of Dark Matter and Dark Ene

Scientific paper

10.1016/S0920-5632(03)02105-4

The DAMA annual modulation signature, interpreted as evidence for a spin-independent WIMP coupling, seems in conflict with null results from CDMS. However, in models of ``inelastic dark matter'', the experiments are compatible. Inelastic dark matter can arise in supersymmetric theories as the real component of a sneutrino mixed with a singlet scalar. In contrast with ordinary sneutrino dark matter, such particles can satisfy all experimental constraints while giving the appropriate relic abundance. We discuss the modifications to the signal seen at DAMA, in particular noting the strong suppression of low energy events in both modulated and unmodulated components. We discuss future experiments, with emphasis on distinguishing inelastic dark matter from ordinary dark matter, and stressing the significance of experiments with heavy target nuclei, such as xenon and tungsten.

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