Evidence for a Dibaryon Signal in the Measurement of Elasticπ+dpolScattering

Abstract
The vector analyzing power (iT11) in elastic πdpol scattering has been measured for several angles at Tπ=142 and 256 MeV. The results are compared with calculations reported in the literature. At the lower energies, Faddeev calculations agree fairly well with the data. At the higher energies, the experimental results differ markedly from any conventional calculation, but agree surprisingly well with predictions in which effects of dibaryon resonances are explicitly included.