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Mainly axion cold dark matter from natural supersymmetry
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By eschewing finetuning from the electroweak and QCD sectors of supersymmetry (natural supersymmetry or SUSY), and by invoking the Kim-Nilles solution to the SUSY mu problem, one is lead to models wherein the dark matter is comprised of a mixture of axions and higgsino-like WIMPs. Over a large range of Peccei-Quinn breaking scale f_a~ 10^9-10^{12} GeV, one then expects about 90-95% axion dark matter. In such a scenario, both axion and WIMP direct detection may be expected.
Forward citations
Cited by 4 Pith papers
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All axion dark matter from supersymmetric models
For Z_4^R and Z_8^R discrete R-symmetries, R-parity violating couplings of order 10^-7 make the lightest supersymmetric particle decay in 10^-3 to 10 seconds, so the dark matter is entirely axion cold dark matter.
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Complementary Probes of Light Higgsinos: Electroweak Precision Measurements and Dark Matter Direct Detection
Future electroweak precision measurements can probe light higgsinos up to 500 GeV even in compressed spectra below the neutrino fog, complementing direct detection which reaches the 1 TeV thermal relic mass.
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Implications of Higgs mass for hidden sector SUSY breaking
The 125 GeV Higgs mass, under naturalness and landscape priors, favors gravity mediation through hidden sector singlets with large A-terms over charged hidden sector models with loop-suppressed A-terms.
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The curtain lowers on directly detectable higgsino dark matter
Using LZ2024 limits, the paper derives new lower bounds on gaugino masses and upper bounds on higgsino mass splittings in decoupled-MSSM higgsino dark matter scenarios, plus projections for the neutrino fog.
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