Polarization in Charge Exchange Reaction π-p → π°n in Small Momentum Transfer Range at 40 GeV/c

First results on measuring polarization in π - p →π°n reaction at 40 GeV/c are presented for the 4-momentum transfer range from 0.05 up to 0.4 (GeV/c)2. The experiment was carried out at the IHEP 70 GeV accelerator on a polarized proton target. Polarization in this reaction was earlier studied at incident momentum below 11.2 GeV/c/1–4/. Comparison of the present data with the previous ones allows us to see the polarization effect decreases with energy growth.