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arXiv · 1503.06077

Shedding light on the $b\to s$ anomalies with a dark sector

D. Aristizabal Sierra·Florian Staub·Avelino Vicente
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Abstract

The LHCb collaboration has recently reported on some anomalies in $b\to s$ transitions. In addition to discrepancies with the Standard Model (SM) predictions in some angular observables and branching ratios, an intriguing hint for lepton universality violation was found. Here we propose a simple model that extends the SM with a dark sector charged under an additional $U(1)$ gauge symmetry. The spontaneous breaking of this symmetry gives rise to a massive $Z^\prime$ boson, which communicates the SM particles with a valid dark matter candidate, while solving the $b\to s$ anomalies with contributions to the relevant observables.

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D. Aristizabal Sierra, Florian Staub, Avelino Vicente. 2015-03-30. Shedding light on the $b\to s$ anomalies with a dark sector. https://arxiv.org/abs/1503.06077

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