Tokyo dark matter search experiment with lithium fluoride bolometer

An experiment to search for hypothetical neutralino dark matter using lithium fluoride bolometer array is underway. This bolometer array consists of eight pieces of 21 g LiF bolometers. Fluorine has large sensitivity for axially coupled neutralino compared with other nuclei. We report on the first results from the pilot run in a shallow depth site (15 m w.e.). From the measured energy spectra the exclusion limits for the cross section of the elastic neutralino scattering off protons are evaluated