Dark matter in anomaly-free gauge extensions
A consistent model for vector mediators to dark matter needs to be anomaly-free and include a scalar mode from mass generation. For the leading U(1) extensions we review the structure and constraints, including kinetic mixing at loop level. The thermal relic density suggests that the vector and...
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| Format: | Article |
| Language: | English |
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SciPost
2018-10-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.5.4.036 |
| Summary: | A consistent model for vector mediators to dark matter needs to be
anomaly-free and include a scalar mode from mass generation. For the leading
U(1) extensions we review the structure and constraints, including kinetic
mixing at loop level. The thermal relic density suggests that the vector and
scalar masses are similar. For the LHC we combine a $Z'$ shape analysis with
mono-jets. For the latter, we find that a shape analysis offers significant
improvement over existing cut-and-count approaches. Direct detection limits
strongly constrain the kinetic mixing angle and we propose a $\ell^+\ell^- E_T$
search strategy based on the scalar mediator. |
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| ISSN: | 2542-4653 |