Papers › Pseudo Nambu-Goldstone Dark Matter: Examples of Vanishing Direct Detection Cross Section
Pseudo Nambu-Goldstone Dark Matter: Examples of Vanishing Direct Detection Cross Section
Dimitrios Karamitros
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We consider cases where the dark matter-nucleon interaction is naturally suppressed. We explicitly show that by extending the standard model scalar sector by a number of singlets, can lead to a vanishing direct detection cross section, if some softly broken symmetries are imposed in the dark sector. In particular, it is shown that if said symmetries are SU(2) (SU(N)) and U(1) ×S_N, then the resulting pseudo-Nambu-Goldstone bosons can constitute the dark matter of the Universe, while naturally explaining the missing signal in nuclear recoil experiments.
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