Determination of the asymptoticD- toS-state ratio of the triton from sub-Coulomb (d→,t) reactions
- 1 December 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 50 (6) , 2695-2702
- https://doi.org/10.1103/physrevc.50.2695
Abstract
Angular distributions of the tensor analyzing power have been measured for ground state transitions in (d→,tSn and (d→,tSm and the first excited state (0.263 MeV) Pb(d→,tPb for deuteron energies well below the Coulomb barrier. Exact, finite-range distorted-wave Born approximation analyses of these data have been made to establish the asymptotic D- to S-state ratio for the triton, . These calculations include a deuteron-nucleus tensor potential determined from the folding model and a long-range tensor potential arising from the Coulomb interaction. Previously obtained (θ) data for the ground state transitions in (d→,tMo, (d→,tSn, and (d→,tSm at different sub-Coulomb energies have been reanalyzed. Also a careful investigation of possible uncertainties in the value of is presented. A best fit to the data gives =-0.0411±0.0013±0.0012, somewhat lower than previous experimental determinations.
Keywords
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