Λ[sup 0] Polarization in pp→pΛ[sup 0]K[sup +] at 800 GeV∕c

We determined Λ0 polarization as function of XF, PT, MX, and EΛ, with respect to the normal of the following two different production planes: The first one defined by the momentum of the 800 GeV/c proton beam and the moment of Λ0; the second one, by the momentum of the transferred object and the momentum of Λ0, from the sample created in the FNAL E690 experiment. We present results, compare and discuss them.