A minimal dark matter interpretation for the CRESST-II signal
Department of Physics and Engineering Physics, University of Saskatchewan, 116 Science Place, Saskatoon, SK S7N 5E2, Canada
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Published online: 25 July 2012
We report on the possible interpretation of the two proposed dark matter mass values m χ =11.6 GeV and m χ =25.3 GeV from CRESST-II within the framework of the Higgs portal minimal dark matter model. We find that the higher mass value yields a suitable fit with a dark matter-Higgs coupling η/2=0.157 and a recoil cross section which is compatible with contemporary estimates of the effective Higgs–nucleon coupling. On the other hand, the lower mass solution would require a large strangeness component in the nucleon to explain the corresponding nucleon recoil cross section reported by CRESST-II.
© Springer-Verlag / Società Italiana di Fisica, 2012