科研之友
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摘要
We report on the possible interpretation of the two proposed dark matter mass values m(chi) = 11.6 GeV and m(chi) = 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 eta/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.
- 出版日期2012-7
