Relic neutralinos: update on neutralino-nucleon scalar cross-section

Details Relic neutralinos: update on neutralino-nucleon scalar cross-section Relic neutralinos: update on neutralino-nucleon scalar cross-section

2000-01-13

arxiv.org/abs/hep-ph/0001114v1

Nucl.Phys.Proc.Suppl. 87 (2000) 84-86

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 2 figures, talk delivered at the 6th International Workshop on Topics in Astroparticle and Underground Physics (TAUP

Scientific paper

10.1016/S0920-5632(00)00639-3

We discuss the effect induced on the neutralino-nucleon scalar cross-section by the present uncertainties in the values of the quark masses and of the quark scalar densities in the nucleon. We examine the implications of this aspect on the determination of the neutralino cosmological properties, as derived from measurements of WIMP direct detection. We show that, within current theoretical uncertainties, the DAMA annual modulation data are compatible with a neutralino as a major dark matter component, to an extent which is even larger than the one previously derived.

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