Speaker
Description
The Heavy Photon Search (HPS) experiment searches for an electro-produced dark photon using an electron beam provided by the CEBAF accelerator at the Thomas Jefferson National Accelerator Facility.
HPS looks for dark photons through two distinct methods, a resonance search in the e+e- invariant mass distribution above the large QED background (large dark photon-SM particles coupling region) and a displaced vertex search for long-lived dark photons (small coupling region).
HPS employs a compact spectrometer, matched to the forward kinematic characteristics of A’ electro-production. The detector consists of a silicon tracker for momentum analysis and vertexing and a lead tungstate (PbWO4) electromagnetic calorimeter for particle ID and triggering.
Three taking periods took place in 2015, 2016 and 2019, while a fourth run has been scheduled in summer 2021.
Results from the available data are presented together with an overview of future projects.
