Search for dark photons from supersymmetric hidden valleys

Details Search for dark photons from supersymmetric hidden valleys Search for dark photons from supersymmetric hidden valleys

2009-05-11

arxiv.org/abs/0905.1478v2

Phys.Rev.Lett.103:081802,2009

Physics

High Energy Physics

High Energy Physics - Experiment

submitted to PRL

Scientific paper

10.1103/PhysRevLett.103.081802

We search for a new light gauge boson, a dark photon, with the D0 experiment. In the model we consider, supersymmetric partners are pair produced and cascade to lightest neutralinos that can decay into the hidden sector state plus either a photon or a dark photon. The dark photon decays through its mixing with a photon into fermion pairs. We therefore investigate a previously unexplored final state that contains a photon, two spatially close leptons, and large missing transverse energy. We do not observe any evidence for dark photons and set a limit on their production.

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