Using the Energy Spectrum at DAMA/LIBRA to Probe Light Dark Matter

Details Using the Energy Spectrum at DAMA/LIBRA to Probe Light Dark Matter Using the Energy Spectrum at DAMA/LIBRA to Probe Light Dark Matter

2008-08-01

arxiv.org/abs/0808.0196v1

Phys.Rev.D79:115011,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 5 figures

Scientific paper

10.1103/PhysRevD.79.115011

A weakly interacting massive particle (WIMP) weighing only a few GeV has been invoked as an explanation for the signal from the DAMA/LIBRA experiment. We show that the data from DAMA/LIBRA are now powerful enough to strongly constrain the properties of any putative WIMP. Accounting for the detailed recoil spectrum, a light WIMP with a Maxwellian velocity distribution and a spin-independent (SI) interaction cannot account for the data. Even neglecting the spectrum, much of the parameter space is excluded by limits from the DAMA unmodulated signal at low energies. Significant modifications to the astrophysics or particle physics can open light mass windows.

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