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Near Threshold Kaluza-Klein Graviton Decays and the Dark Dimension
Near threshold, intra-tower decays of Kaluza-Klein (KK) gravitons are pure $d$-wave, with rate $Γ\propto p^5$ in the decay products momentum $p$, rather than the $s$-wave $Γ\propto p$ assumed in the dark dimension literature. In a flat dark dimension this excludes KK gravitons as a dark matter candi
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