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- W373990866 abstract "We study asymmetric dark matter (ADM) in the context of the minimal (fraternal) twin Higgs solution to the little hierarchy problem, with a twin sector with gauged SU(3)^{'}×SU(2)^{'}, a twin Higgs doublet, and only third-generation twin fermions. Naturalness requires the QCD^{'} scale Λ_{QCD}^{'}≃0.5-20 GeV, and that t^{'} is heavy. We focus on the light b^{'} quark regime, m_{b^{'}}≲Λ_{QCD}^{'}, where QCD^{'} is characterized by a single scale Λ_{QCD}^{'} with no light pions. A twin baryon number asymmetry leads to a successful dark matter (DM) candidate: the spin-3/2 twin baryon, Δ^{'}∼b^{'}b^{'}b^{'}, with a dynamically determined mass (∼5Λ_{QCD}^{'}) in the preferred range for the DM-to-baryon ratio Ω_{DM}/Ω_{baryon}≃5. Gauging the U(1)^{'} group leads to twin atoms (Δ^{'}-τ^{'}[over ¯] bound states) that are successful ADM candidates in significant regions of parameter space, sometimes with observable changes to DM halo properties. Direct detection signatures satisfy current bounds, at times modified by dark form factors." @default.
- W373990866 created "2016-06-24" @default.
- W373990866 creator A5026561317 @default.
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- W373990866 date "2015-09-16" @default.
- W373990866 modified "2023-09-29" @default.
- W373990866 title "Twin Higgs Asymmetric Dark Matter" @default.
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- W373990866 doi "https://doi.org/10.1103/physrevlett.115.121801" @default.
- W373990866 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26430985" @default.
- W373990866 hasPublicationYear "2015" @default.
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