Tensor-force effects in the H-2 (d--->, gamma) 4He reaction and the D state of He-4

Mellema, S.; Wang, T.R.; Haeberli, W.

doi:10.1103/PhysRevC.34.2043

Tensor-force effects in the H-2 (d--->, gamma) 4He reaction and the D state of He-4

S. Mellema
(
- Wisconsin U., Madison
)
,
T.R. Wang
(
- Wisconsin U., Madison
)
,
W. Haeberli
(
- Wisconsin U., Madison
)

Dec, 1986

5 pages

Published in:

Phys.Rev.C 34 (1986) 2043-2048

DOI:

10.1103/PhysRevC.34.2043

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Abstract: (APS)

Vector analyzing powers, tensor analyzing powers, and relative differential cross sections have been measured for the (d→2,γ)4He reaction at an incident energy of 10 MeV. Multipole decomposition and partial-wave analysis reveal that about 15% of the cross section involves processes in which the tensor force plays a role, either in the entrance or exit channel. Contrary to earlier claims, the reaction cannot be used to determine the D-state admixture in the He4 wave function unless the D state of the deuteron and other tensor-force effects in the entrance channel are taken into account.