<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">He</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>4</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math> D-state effects in the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">H</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>2</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>(d→,γ<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mo>)</mo><mi mathvariant="normal"></mi></mrow><mrow><mn>4</mn></mrow></msup></mrow></math>He reaction

F. D. Santos; A. Arriaga; A. M. Eiró; J. A. Tostevin

doi:10.1103/PhysRevC.31.707

Rapid Communication

${}^{4}{He}$ D-state effects in the ${}^{2}H$ (d→,γ $)^{4}$ He reaction

F. D. Santos, A. Arriaga, A. M. Eiró, and J. A. Tostevin

Phys. Rev. C 31, 707(R) – Published 1 February 1985

Abstract

A discussion of tensor analyzing powers of the ${}^{2}H$ (d→,γ $)^{4}$ He reaction at low energy ( $E_{d < 20}$ MeV), where the process is predominantly E2, is presented. The inclusion of the ${}^{4}{He}$ D state generates transitions from the ${}^{5}S_{2}$ , ${}^{5}D_{2}$ , and ${}^{5}G_{2}$ initial states. It is shown that the tensor analyzing powers depend linearly on the D/S ratio ρ of ${}^{4}{He}$ for angles near (1/4)π and (3/4)π. Using scattering wave functions with phase shifts obtained from resonating group calculations good agreement with recent $T_{20}$ data at $E_{d}$ =9.7 MeV is obtained for -0.5<ρ<-0.4.