Extending the DAMA annual-modulation region by inclusion of the uncertainties in astrophysical velocities
Year: 1999
Type: article
Abstract: The original annual-modulation region, singled out by the DAMA-NaI experiment for direct detection of WIMPs, is extended by taking into account the uncertainties in the galactic astrophysical velocities. Also the effect due to a possible bulk rotation for the dark matter halo is considered. We find that the range for the WIMP mass becomes 30 $\mathrm{GeV}\ensuremath{\lesssim}{m}_{\ensuremath{\chi}}\ensuremath{\lesssim}130$ GeV at 1\ensuremath{\sigma} C.L. with a further extension in the upper bound, when a possible bulk rotation of the dark matter halo is taken into account. We show that the DAMA results, when interpreted in the framework of the minimal supersymmetric extension of the standard model, are consistent with a relic neutralino as a dominant component of cold dark matter (on the average in our universe and in our galactic halo). The discovery potential for the relevant supersymmetric configurations at present generation accelerators is also discussued.
Institutions: University of Rome Tor Vergata, Istituto Nazionale di Fisica Nucleare, Sezione di Torino, University of Turin, Laboratoire d'Annecy de Physique Théorique, Universitat de València, Instituto de Física Corpuscular, Istituto Nazionale di Fisica Nucleare, Sezione di Roma I, Sapienza University of Rome, Universidad de Zaragoza
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funder: European Commission
OpenAlex ID: W2071929640