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Isospin-Violating Dark Matter in the U(1)' Model with E₆ Origin

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arxiv 1908.00423 v2 pith:5PXWEWE5 submitted 2019-08-01 hep-ph

Isospin-Violating Dark Matter in the U(1)' Model with E₆ Origin

classification hep-ph
keywords darkdetectionmattercollidersdirectexperimentsfuturegive
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We propose a $U(1)'$ model from $E_6$ which has an isospin-violation dark matter. By choosing a proper linear combination of two extra $U(1)$ gauge symmetries in $E_6$, it is natural to realize the ratio $f_n/f_p=-0.7$ so as to maximally relax the constraints from the Xenon based direct detection experiments. We study the sensitivities of the dark matter direct and indirect detection experiments, and identify the parameter spaces that can give the observed relic density. We also study the sensitivities of the future colliders with center mass energy $\sqrt{s}$= 33/50/100 TeV, and compare the different detection methods. We show that in some parameter spaces the future colliders can give much stronger limits.

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