Implications of new CMB data for neutralino dark matter
نویسندگان
چکیده
The combination of new cosmic microwave background data with cosmo-logical priors has determined the physical cold dark matter (cdm) density to be Ω cdm h 2 = 0.13 ± 0.01. We find the corresponding regions of parameters in the minimal supergravity model for which the lightest neutralino is the cdm particle. We then compare with the muon anomalous magnetic moment (a µ) measurement, the mass of the lighter CP-even Higgs boson (h 0), the trilep-ton search at the upgraded Fermilab Tevatron collider, and a direct search for relic neutralinos. The intersection of Ω cdm h 2 and a µ constraints selects tan β ≈ 40 − 45.
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