The High-Acceptance Dielectron Spectrometer HADES

Understand

HADES is a versatile magnetic spectrometer aimed at studying dielectron production in pion, proton and heavy-ion induced collisions.

• Its main features include a ring imaging gas Cherenkov detector for electron-hadron discrimination, a tracking system consisting of a set of 6 superconducting coils producing a toroidal field and drift chambers and a multiplicity and electron trigger array for additional electron-hadron discrimination and event characterization.
• A two-stage trigger system enhances events containing electrons.
• The physics program is focused on the investigation of hadron properties in nuclei and in the hot and dense hadronic matter.