Sensitivity plots for WIMP direct detection using the annual modulation signature

Details Sensitivity plots for WIMP direct detection using the annual modulation signature Sensitivity plots for WIMP direct detection using the annual modulation signature

1999-12-17

arxiv.org/abs/hep-ph/9912394v1

Astropart.Phys. 14 (2001) 339-350

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1016/S0927-6505(00)00124-9

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.

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