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CEPC Precision of Electroweak Oblique Parameters and Weakly Interacting Dark Matter: the Fermionic Case

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arxiv 1611.02186 v4 pith:FNNKECWO submitted 2016-11-07 hep-ph hep-ex

CEPC Precision of Electroweak Oblique Parameters and Weakly Interacting Dark Matter: the Fermionic Case

classification hep-ph hep-ex
keywords electroweakprecisioncepcdarkfermionicinteractingmattermodels
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Future electroweak precision measurements in the Circular Electron Positron Collider (CEPC) project would significantly improve the precision of electroweak oblique parameters. We evaluate the expected precision through global fits, and study the corresponding sensitivity to weakly interacting fermionic dark matter. Three models with electroweak multiplets in the dark sector are investigated as illuminating examples. We find that the CEPC data can probe up to TeV scales and explore some regions where direct detection cannot reach, especially when the models respect the custodial symmetry.

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