The New DAMA Dark-Matter Window and Energetic-Neutrino Searches

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dc.creatorHooper, Dan
dc.creatorPetriello, Frank
dc.creatorZurek, Kathryn M.
dc.creatorKamionkowski, Marc
dc.date2008-08-19
dc.date.accessioned2026-07-07T12:46:28Z
dc.date.available2026-07-07T12:46:28Z
dc.descriptionRecently, the DAMA/LIBRA collaboration has repeated and reinforced their claim to have detected an annual modulation in their signal rate, and have interpreted this observation as evidence for dark-matter particles at the 8.2 sigma confidence level. Furthermore, it has also been noted that the effects of channeling may enable a WIMP that scatters elastically via spin-independent interactions from nuclei to produce the signal observed by DAMA/LIBRA without exceeding the limits placed by CDMS, XENON, CRESST, CoGeNT and other direct-detection experiments. To accommodate this signal, however, the mass of the responsible dark-matter particle must be relatively light, m_{DM} \lsim 10 GeV. Such dark-matter particles will become captured by and annihilate in the Sun at very high rates, leading to a potentially large flux of GeV-scale neutrinos. We calculate the neutrino spectrum resulting from WIMP annihilations in the Sun and show that existing limits from Super-Kamiokande can be used to close a significant portion of the DAMA region, especially if the dark-matter particles produce tau leptons or neutrinos in a sizable fraction of their annihilations. We also determine the spin-dependent WIMP-nuclei elastic-scattering parameter space consistent with DAMA. The constraints from Super-Kamiokande on the spin-dependent scenario are even more severe--they exclude any self-annihilating WIMP in the DAMA region that annihilates 1% of the time or more to any combination of neutrinos, tau leptons, or charm or bottom quarks.
dc.description13 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/0808.2464
dc.identifierhttp://arxiv.org/abs/0808.2464
dc.identifierPhys.Rev.D79:015010,2009
dc.identifierdoi:10.1103/PhysRevD.79.015010
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/221392
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe New DAMA Dark-Matter Window and Energetic-Neutrino Searches
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