208Pb(t,d)209Pb Reaction with 20-MeV Tritons

Details 208Pb(t,d)209Pb Reaction with 20-MeV Tritons 208Pb(t,d)209Pb Reaction with 20-MeV Tritons

Jan 1969

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969phrv..177.1831i&link_type=abstract

Physical Review, vol. 177, Issue 4, pp. 1831-1840

Physics

25

Scientific paper

Spectroscopic factors for the single-neutron states in 209Pb have been determined from angular distributions of the 208Pb(t,d)209Pb reaction. The 1.42-MeV level was found to contain only part of the j152 single-particle strength. A neutron-bound-state well which reproduces the observed level order and spacings of the positive-parity single-particle states and also gives shell-model-like spectroscopic factors is discussed. Both counter-telescope and magnetic-spectrograph techniques were employed, the latter method being used to extend the spectrum to higher excitation energies. A number of previously unreported levels in 209Pb are noted. Elastic-scattering measurements were also carried out and the resulting optical-model analysis used in distorted-wave calculations. These calculations indicate that the (t,d) reaction is insensitive to cutoff radii and to the choice of either of two sets of triton optical-model potentials which fit the elastic-scattering data.

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