Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-09-02
Astropart.Phys.13:215-225,2000
Physics
High Energy Physics
High Energy Physics - Phenomenology
23 pages, 7 figures, 1 table, typeset with ReVTeX. Due to size limitations, the version on the archive has low resolution figu
Scientific paper
10.1016/S0927-6505(99)00122-X
We discuss the effect induced on the neutralino-nucleon 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. We also comment on implications of the mentioned uncertainties for experiments of indirect dark matter detection.
Bottino Alberto
Donato Fiorenza
Fornengo Nicolao
Scopel Stefano
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