<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>α</mi></math>-Particle <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>D</mi></math>-State Components from (<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>d</mi></math>, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>α</mi></math>) Analyzing Powers

B. C. Karp; E. J. Ludwig; W. J. Thompson; F. D. Santos

doi:10.1103/PhysRevLett.53.1619

$α$ -Particle $D$ -State Components from ( $d$ , $α$ ) Analyzing Powers

B. C. Karp, E. J. Ludwig, W. J. Thompson, and F. D. Santos

Phys. Rev. Lett. 53, 1619 – Published 22 October 1984

Abstract

A $D$ -state component in the $α$ particle has been extracted from angular distributions of tensor analyzing powers for ${}^{89}Y (d, α_{0}) {}^{87}{Sr}$ at 9, 12, and 16 MeV. Exact finite-range distorted-wave Born-appproximation analyses including the effects of $L$ and $J$ mixing have been performed. The $D$ -state parameter $D_{2}$ , closely related to the asymptotic $D$ - to $S$ -state ratio for $d - d$ relative motion in the $α$ particle, requires a value of $D_{2} = - 0.3 \pm 0.1$ ${fm}^{2}$ in order to fit the tensor analyzing power data.