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- W3098550300 endingPage "015" @default.
- W3098550300 startingPage "015" @default.
- W3098550300 abstract "Assuming the existence of a primordial asymmetry in the dark sector, a scenario usually dubbed Asymmetric Dark Matter (aDM), we study the effect of oscillations between dark matter and its antiparticle on the re-equilibration of the initial asymmetry before freeze-out, which enable efficient annihilations to recouple. We calculate the evolution of the DM relic abundance and show how oscillations re-open the parameter space of aDM models, in particular in the direction of allowing large (WIMP-scale) DM masses. A typical wimp with a mass at the EW scale (sim 100 GeV - 1 TeV) presenting a primordial asymmetry of the same order as the baryon asymmetry naturally gets the correct relic abundance if the DM-number-violating Delta(DM) = 2 mass term is in the sim meV range. The re-establishment of annihilations implies that constraints from the accumulation of aDM in astrophysical bodies are evaded. On the other hand, the ordinary bounds from BBN, CMB and indirect detection signals on annihilating DM have to be considered." @default.
- W3098550300 created "2020-11-23" @default.
- W3098550300 creator A5040744834 @default.
- W3098550300 creator A5047587648 @default.
- W3098550300 creator A5049559639 @default.
- W3098550300 creator A5082681366 @default.
- W3098550300 date "2012-03-08" @default.
- W3098550300 modified "2023-10-01" @default.
- W3098550300 title "Consequences of DM/antiDM oscillations for asymmetric WIMP dark matter" @default.
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