A deuteron polarimeter for polarized beams of relativistic energies

Measurement of the differential cross-section and deuteron vector analyzing power in dp-elastic scattering at 2.0 GeV

“…The RF amplitudes for the corresponding hyperfine structure transitions were properly tuned to minimize the asymmetry in the vector polarization values for the both modes, as well as for the tensor polarization admixture, especially, for the mode (−2/3, 0) [39]. The evaluation of the vector polarization of the deuteron beam has been performed using the events from the reaction dp −→ ppn [40].…”

The 270 MeV deuteron beam polarimeter at the Nuclotron Internal Target Station

“…The d−p elastic scattering has been traditionally used for the tensor and vector polarimetry at intermediate and high energies. It was demonstrated that the d − p elastic scattering at forward angles has large vector A y and tensor A yy analyzing powers at 1600 MeV [12] and can be used for polarization analysis [13,14]. Shortcoming of the measurements at forward angles is that it requires a sophisticated equipment to identify the events.…”

“…For example, in Ref. [12], deuterons scattered at θ d lab = 7.5 • from a hydrogen target were selected by the two-arm magnetic spectrometer ALPHA, from the deuterons of other reaction channels and other particles. The same method has been applied recently at COSY using the ANKE spectrometer [15] at the initial deuteron energy of 1170 MeV and 4 • ≤ θ d lab ≤ 10 • where the vector and tensor analyzing powers are large [13,16].…”