Measurement Of The Polarization Transfer-Coefficient Kls In The (P)Right-Arrow-P-](D)Right-Arrow-Pi+ Reaction

We have measured the polarization transfer asymmetries of the reaction pp --> d-pi + from the longitudinally polarized proton to the sideways polarized deuteron for deuteron center-of-mass angles from 25-degrees to 140-degrees. Our longitudinal to sideways polarization transfer data are best represented by the partial-wave amplitude fits of Bugg et al. while several model calculations are only in qualitative agreement.