Determination of the asymptotic D- to S-state ratio for He3 via (d→, He3) reactions

Angular distributions of the tensor analyzing powers Ayy and Azz have been measured for the ground-state transition in the Nb93(d→, He3)Zr92 reaction at Ed=12 MeV, and of Azz for the ground-state transitions in Cu63(d→, He3)Ni62 at Ed=8 MeV and Y89(d→, He3)Sr88 at Ed=10.5 MeV. The data are compared...
Ausführliche Beschreibung

Angular distributions of the tensor analyzing powers Ayy and Azz have been measured for the ground-state transition in the Nb93(d→, He3)Zr92 reaction at Ed=12 MeV, and of Azz for the ground-state transitions in Cu63(d→, He3)Ni62 at Ed=8 MeV and Y89(d→, He3)Sr88 at Ed=10.5 MeV. The data are compared with predictions of full finite-range distorted-wave Born approximation (DWBA) calculations from which the asymptotic D- to S-state ratio, η, for He3 is extracted to be -0.0386±0.0045±0.0012. The difficulties with a choice of deuteron tensor optical potentials used in the DWBA calculations are discussed. Ausführliche Beschreibung