Study of coherent pion production in proton-deuteron collisions with polarized beams and target at ANKE-COSY

Abstract

Abstract. Values of the proton analysing power, deuteron vector analysing power, and the deuteron-proton spin correlations in the pd → 3 He π 0 / 3 H π + reactions at 350-360 MeV per nucleon were obtained by using polarized beams and target at ANKE-COSY. Data were also obtained on the deuteron-proton spin correlation and proton analysing power at small angles at 600 MeV per nucleon. By combining the extrapolated values of the spin correlations to the forward or backward directions with published measurements of the deuteron tensor analysing powers, the relative phases between the two non-vanishing amplitudes were evaluated.