Sensitivity plots for WIMP direct detection using the annual modulation signature

Abstract

Annual modulation due to the Earth's motion around the Sun is a well known signature of the expected WIMP signal induced in a solid state underground detector. In the present letter we discuss the prospects of this technique on statistical grounds, introducing annual-modulation sensitivity plots for the WIMP-nucleon scalar cross section for different materials and experimental conditions. The highest sensitivity to modulation is found in the WIMP mass interval 10 GeV< m_W < 130 GeV, the actual upper limit depending from the choice of the astrophysical parameters, while the lowest values of the explorable WIMP-nucleon elastic cross-sections fall in most cases within one order of magnitude of the sensitivities of present direct detection WIMP searches.

24 pages, ReVTeX, 9 figures, submitted to Astroparticle Physics

References in corpus (2)

• Extending the DAMA annual-modulation region by inclusion of the uncertainties in the astrophysical velocities
• WIMP Velocity Impact on Direct Dark Matter Searches

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• Present status of IGEX dark matter search at Canfranc Underground Laboratory
• Direct Dark Matter Searches
• Searching for the Annual Modulation of Dark Matter signal with the GENIUS-TF experiment
• Direct detection of WIMPs with conventional (non-cryogenic) detectors. Experimental review
• Background analysis and status of the ANAIS dark matter project