Limits on the WIMP-nucleon scattering cross-section from neutrino telescopes - Astrophysics > Cosmology and Nongalactic AstrophysicsReportar como inadecuado




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Abstract: Neutrino-telescopes like Super-Kamiokande and IceCube have started to explorethe neutrino fluxes from WIMP annihilations in the Sun. The non-observation ofa signal can put constraints on the WIMP properties. We here focus on theneutrino signal from WIMP annihilation in the Sun and show that underreasonable assumptions, the non-observation of a signal from IceCube puts amuch tighter constraint on the spin-dependent WIMP-proton scatteringcross-section than current direct detection experiments like COUPP and KIMS.For the spin-independent scattering cross-section, the limits from IceCube andcurrent direct detection experiments like XENON10 and CDMS place similarconstraints. We here go through the assumptions being made and theuncertainties that arise in converting from limits on the muon flux from theSun to limits on the WIMP-proton cross-section, and present our results as easyto use conversion factors.



Autor: G. Wikström, J. Edsjö

Fuente: https://arxiv.org/



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