1 Introduction

2 Spin formalism of polarized beam production

3 Beam polarization dependence of the rate

4 Born term simplifications at threshold and in the high-energy limit

5 Born term simplifications for P_eff = ∓1

6 The polarization components P^(ℓ), P^(tr), and P^(n)

7 Total polarization and orientation of the polarization vector

8 Longitudinal spin–spin correlations

9 Summary and conclusions