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Isospin-violating dark matter from a double portal

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arxiv 1311.0022 v3 pith:TKVGGKPY submitted 2013-10-31 hep-ph

Isospin-violating dark matter from a double portal

classification hep-ph
keywords darkisospin-violatingmattermodelasymmetricbosoncdms-sicompatible
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

We study a simple model that can give rise to isospin-violating interactions of Dirac fermion asymmetric dark matter to protons and neutrons through the interference of a scalar and U(1)$'$ gauge boson contribution. The model can yield a large suppression of the elastic scattering cross section off Xenon relative to Silicon thus reconciling CDMS-Si and LUX results while being compatible with LHC findings on the 126 GeV Higgs, electroweak precision tests and flavour constraints.

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Cited by 1 Pith paper

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  1. Neutrino fog in the light dark sector: the role of isospin violation

    hep-ph 2025-08 unverdicted novelty 5.0

    In a U(1)' dark sector model, isospin-violating couplings shift both the neutrino floor and the DM exclusion bound, changing the window for light dark matter discovery.