Determination of proton-deuteron scattering lengths

摘要

An energy dependent phase-shift analysis of p + d elastic scattering below the deuteron breakup threshold has been conducted. The analysis indicates the existence of a singularity in the doublet S-wave effective range function, resulting in a very small value for the scattering length ~2a_(pd). The inferred value of the quartet S-wave scattering length ~4a_(bd) is in good agreement with theoretical predictions.