Determination of the asymptotic D- to S-state ratio of the triton from sub-Coulomb (d-->,t) reactions

Details Determination of the asymptotic D- to S-state ratio of the triton from sub-Coulomb (d-->,t) reactions Determination of the asymptotic D- to S-state ratio of the triton from sub-Coulomb (d-->,t) reactions

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phrvc..50.2695k&link_type=abstract

Physical Review C (Nuclear Physics), Volume 50, Issue 6, December 1994, pp.2695-2702

Physics

Nuclear Physics

10

Few-Body Systems, Direct Reactions, Polarization Phenomena In Reactions, Transfer Reactions

Scientific paper

Angular distributions of the tensor analyzing power Azz have been measured for ground state transitions in 119Sn(d-->,t)118Sn and 149Sm(d-->,t)148Sm and the first excited state (0.263 MeV) in206Pb(d-->,t)205Pb 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, ηt. 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 Azz(θ) data for the ground state transitions in 95Mo(d-->,t)94Mo, 119Sn(d-->,t)118Sn, and 149Sm(d-->,t)148Sm at different sub-Coulomb energies have been reanalyzed. Also a careful investigation of possible uncertainties in the value of ηt is presented. A best fit to the data gives ηt=-0.0411+/-0.0013+/-0.0012, somewhat lower than previous experimental determinations.

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