Extending a previous analysis on a possible modulation effect in WIMP direct search

Abstract

In this note we present an extension of our previous analysis of some preliminary experimental results of the DAMA/NaI Collaboration which might be indicative of a yearly modulation effect. Here we present a direct way for obtaining from the experimental data the relevant cosmological implications for relic neutralinos. We find that some of the configurations singled out by the DAMA/NaI results would have cosmological properties compatible with a neutralino as a dominant component of cold dark matter (on the average in the Universe and in our galactic halo).

7 pages, ReVTeX, 7 figures (high resolution figures are available at ftp://ftp.to.infn.it/pub/fornengo/_dftt61_97.uu