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Cédric Delaunay (LAPTH) : "Dark Matter from muon and diphoton anomalies"
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Europe/Paris
Amphi Georges Charpak (LPNHE)
Amphi Georges Charpak
LPNHE
Description
We present a minimal phenomenological model which simultaneously explains observed anomalies in the magnetic moment of the muon and semi-leptonic decays of neutral B mesons at LHCb. The model further predicts the existence of a dark matter candidate and a new scalar particle with possibly significant decay into diphoton final state. In a large portion of parameter space consistent with g-2 and LHCb measurements, the relic density of dark matter, produced through the standard thermal freeze-out mechanism, is found to be close to cosmological observations. In addition, the model can explain the 750GeV diphoton excess at the ATLAS and CMS experiments. However, in this case the dark relic has to be produced non-thermally.
