Complete set of first-order polarization observables in nucleon-deuteron elastic scattering near 20 MeV deuteron energy

We have measured differential cross section and analyzing powers Ayᵖ, iT₁₁, T₂₀, T₂₁, and T₂₂ for proton-deuteron elastic scattering near 20 MeV deuteron energy. The total error of the differential cross section was 1% or less. Each deuteron analyzing power was measured independently with the maximum efficiency. The total error of the analyzing power was less than 0.007. Faddeev calculations have been performed for three cases of nucleon-nucleon interaction. None of them gives an overall quantitative fit to the measured values. The effect of the Coulomb interaction is discussed.NUCLEAR REACTIONS ²H(→p, p)²H, Eₚ=11.1 MeV; measured σ₀(θ), Ayᵖ(θ); ¹H(→d, d)¹H, Ed=17.0, 20.0, 22.2 MeV; measured iT₁₁(θ), T₂₀(θ), T₂₁(θ), T₂₂(θ). Faddeev calculations.