Comparison of the vector analyzing power iT11 for π±d scattering at 180 MeV

The vector analyzing power {ital iT}{sub 11} has been measured for the first time for {pi}{sup +}{ital d} and {pi}{sup {minus}}{ital d} elastic scattering at {ital T}{sub {pi}}=180 MeV in the angular range between 50{degree} and 110{degree}, using a polarized deuteron target and a magnetic spectrometer. The data are compared with theoretical calculations involving different Coulomb prescriptions.