Implications of Recent Nucleon Spin Structure Measurements for Neutralino Dark Matter Detection

Kamionkowski, Marc; Krauss, Lawrence M.; Ressell, M. Ted

Implications of Recent Nucleon Spin Structure Measurements for Neutralino Dark Matter Detection

Authors

Kamionkowski, Marc

Krauss, Lawrence M.

Ressell, M. Ted

Description

Predicted rates for direct and indirect detection of dark-matter neutralinos depend in general on the spin content of the nucleon. Neutralinos that are predominantly $B$-ino are the likeliest candidates for detection via spin-dependent interactions. Uncertainties in the measured spin content of the nucleon may lead to dramatic uncertainties in the rates for detection of $B$-inos by scattering off of nuclei with unpaired neutrons. Rates for spin-dependent scattering of $B$-inos off of nuclei with unpaired protons are far more robust, as are rates for capture of $B$-inos in the Sun.
7 pages, TeX, Harvmac required, CWRU-P3-94, IASSNS-HEP-94/14, UCRL-JC-116940, revised to include updated data and analysis