Regular Article - Experimental Physics
Limits on Kaluza–Klein dark matter annihilation in the Sun from recent IceCube results
Department of Physics and Astronomy, Uppsala University, Box 516, 751 20, Uppsala, Sweden
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Accepted: 3 February 2020
Published online: 15 February 2020
We interpret recent IceCube results on searches for dark matter accumulated in the Sun in terms of the lightest Kaluza–Klein excitation (assumed here to be the Kaluza–Klein photon, ), obtaining improved limits on the annihilation rate in the Sun, the resulting neutrino flux at the Earth and on the -proton cross-sections, for masses in the range 30–3000 GeV. These results improve previous results from IceCube in its 22-string configuration by up to an order of magnitude, depending on mass, but also extend the results to masses as low as 30 GeV.
© The Author(s), 2020