Influence of Nucleon Structure on Tensor and Vector Analyzing Powers in Elastic Electron–Deuteron Scattering

详细

Influence of nucleon structure on single tensor-deuteron and double beam-vector-deuteron analyzing powers in the elastic electron-deuteron scattering process is investigated. We report numerical results for the tensor-deuteron (T₂₀, T₂₁, and T₂₂), and beam-vector-deuteron (T₁₀ and T₁₁) analyzing powers as functions of the four-momentum transfer square Q² and the electron scattering angle in the laboratory frame θ_e. This is made possible with the advent of recent polarization measurements with polarized electron beams and/or polarized deuteron targets at MIT-Bates, JLab, NIKHEF, VEPP-2, and VEPP-3. We found that the predicted results for T₂₁, T₂₂, T₁₀, and T₁₁ are sensitive to the nucleon electromagnetic form factors. On the contrary, the T₂₀ analyzing power is found to be almost independent on the actual nucleon form factors. The predicted analyzing powers are compared with the available experimental data and a satisfactory agreement is obtained.