A Variational Calculation on the n-d System ---An Extended Resonating-Group Method---

Details A Variational Calculation on the n-d System ---An Extended Resonating-Group Method--- A Variational Calculation on the n-d System ---An Extended Resonating-Group Method---

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pthph..64..162h&link_type=abstract

Progress of Theoretical Physics, Vol. 64, No. 1, pp. 162-183

Physics

2

Scientific paper

A variational principle of Kohn-type is derived for elastic n-d scattering below and above deuteron-breakup in the framework of the Faddeev equations. The two-body central local potential is assumed. Applying this principle, we evaluate the s-wave phase shifts of elastic n-d scattering and the triton binding energy. Introducing a pair correlation function in the trial function, we obtain equations of an extended resonating-group structure. As an illustration, these equations are solved for a Gaussian potential. It is found that for incident energies below 15MeV, the results of the usual resonating-group model are much improved in the doublet state and the empirical effective formula for this state is well reproduced. The interaction mechanisms of low-energy n-d scattering are also visualized in a simple manner.

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