Spin Polarization of [Formula presented] Produced in a Single-Proton Pickup Reaction at Intermediate Energies

Spin polarization of [Formula presented] nuclei produced via single proton pickup from a [Formula presented] target by a beam of [Formula presented] [Formula presented] has been observed. Positive spin polarization with magnitude [Formula presented] was deduced near the peak of the [Formula presented] momentum distribution. The variation of the spin polarization as a function of outgoing [Formula presented] momentum is explained by a classical conservation model, as previously applied to describe the induced spin polarization observed for fragments produced in intermediate-energy heavy-ion reactions, with the condition that the picked-up proton has an average momentum equal to the Fermi momentum and is aligned along the incident beam direction.