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The DAMA Collaboration has recently analyzed its data of the extensive WIMPdirect search (DAMA/NaI) which detected an annual modulation, by taking intoaccount the channelling effect which occurs when an ion traverses a detectorwith a crystalline structure. Among possible implications, this Collaborationhas considered the case of a coherent WIMP-nucleus interaction and then derivedthe form of the annual modulation region in the plane of the WIMP-nucleon crosssection versus the WIMP mass, using a specific modelling for the channellingeffect. In the present paper we first show that light neutralinos fit theannual modulation region also when channelling is taken into account. Todiscuss the connection with indirect signals consisting in galactic antimatter,in our analysis we pick up a specific galactic model, the coredisothermal-sphere. In this scheme we determine the sets of supersymmetricmodels selected by the annual modulation regions and then prove that these setsare compatible with the available data on galactic antiprotons. We comment onimplications when other galactic distribution functions are employed. Finally,we show that future measurements on galactic antiprotons and antideuterons willbe able to shed further light on the populations of light neutralinos singledout by the annual modulation data.

Zooming in on light relic neutralinos by direct detection and measurements of galactic antimatter