Description
The CYGNO experiment is a 1~m$^3$ gas TPC for directional dark matter searches, as a prototype toward the 100-1000~m$^3$ CYGNUS network of underground experiments. In such a TPC, electrons produced by dark-matter-induced nuclear recoils will drift toward and will be multiplied by a three-layer GEM structure, and the light produced in the avalanche processes will be readout by
sCMOS cameras, providing a 2D image of the event with a resolution of a few hundred micrometers. Photomultipliers will also provide a simultaneous fast readout of the time profile of the light production, giving information about the third coordinate and hence allowing a 3D reconstruction of the event, from which the direction of the nuclear recoil and hence the direction of the incoming particle can be
inferred. Such a detailed reconstruction of the event topology will also allow a pure and efficient signal to background discrimination.
