Cross sections for proton-deutron scattering from 1.0 to 10.0 MeV

Abstract. The three-nucleon system is studied within the multi-configuration resonating-group method. The model space is spanned by p + d, p + d', and their associated pseudo-inelastic configurations. The results show that, at lower energies less than about 15 MeV, the calculated p + d differential scattering and total reaction cross sections agree well with experiment, suggesting that the use of pseudo-inelastic configurations can yield an adequate description of deuteron direct-breakup processes. At higher energies, the agreement is less satisfactory, owing mainly to the adoption of a relatively small number of pseudo-inelastic configurations in our formulation. The p + d inter-cluster interactions are found to be appreciably odd-even L-dependent and are characteristically different in channel spin S = 23 and 89 states. Specific distortion effects of the deuteron cluster are also studied. For relative orbital angular momentum L = 0, these effects turn out to be small in the S = 23 state but are quite large in the S = 89 state.

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“…The e,xperimental data shown are those of refs. [29][30][31]. Here we find that the agreement between calculation and experiment is quite good.…”

Section: Differential Scattering Cross Sectionsupporting

confidence: 67%

Multi-configuration resonating-group study of the three-nucleon system

1991

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“…The central part of the entrance potentials for α-p and d-p has been derived as previously [27] from empirical p-α and p-d potentials by means of a single-folding method. The empirical potentials were obtained from p + d and p + α elastic-scattering studies at E = 2.52-5 MeV/u measured previously [40][41][42][43][44][45][46]. These p + d and p + α elastic-scattering data were fitted by simple Woods-Saxon form factors for both real volume and imaginary volume parts for the p + α system and a real volume and a surface imaginary term for the p + d system.…”

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confidence: 99%