Search for antimatter in cosmic radiation, a matter-antimatter space spectrometer

The open question of matter-antimatter symmetry can be investigated by measuring the antiproton flux in high atmosphere. In this paper a balloon-borne experiment using a superconducting magnet coupled to a tracking calorimeter is proposed to carry out such measurements at latitudes of low geomagnetic cut-off. An overwiev on further possible developments such as search for antinuclei to be performed with future planned facilities (NASA Space Station) is also presented