A Method to Polarize Stored Antiprotons to a High Degree

The PAX collaboration proposed a method to prepare intense beams of polarized antiprotons [1]. Polarized antiprotons can be produced in a storage ring by spin-dependent interaction in a pure hydrogen gas target. The polarizing process is based on spin transfer from the polarized electrons of the target atoms to the orbiting antiprotons. In this paper, beside a description of the polarization technique and its potential, a preliminary lattice design and first ideas for beam cooling are discussed.