Comparison of realistic local and one-boson-exchange potentials in the three-nucleon system

I. R. Afnan and J. M. Read
Phys. Rev. C 12, 293 – Published 1 July 1975
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Abstract

The disagreement that currently exists regarding the calculated and experimental values of the triton binding energy (ET) and the doublet scattering length (a2) is analyzed in considerable detail. Using the unitary pole approximation, which has previously been tested with great success, we have calculated ET and a2 for a large class of realistic potentials. The results show that the one-boson-exchange potentials (OBEP) give in general ∼1 MeV more binding for H3 and correspondingly smaller a2 than the local hard- and soft-core potentials. This difference is shown to be partly due to the fact that the OBEP have in general smaller deuteron D-state probability, and partly due to the fact that they fit the S01 np rather than the pp data. Finally, we demonstrate that the correlation between ET and a2, predicted by Phillips on the basis of separable potential calculations, has validity for the more realistic interactions.

NUCLEAR STRUCTURE H3; calculated binding energy, doublet scattering length. Faddeev approach, realistic NN interactions.

  • Received 1 April 1975

DOI:https://doi.org/10.1103/PhysRevC.12.293

©1975 American Physical Society

Authors & Affiliations

I. R. Afnan and J. M. Read

  • School of Physical Sciences, The Flinders University of South Australia, Bedford Park, South Australia, 5042

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Vol. 12, Iss. 1 — July 1975

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