Local p4 potentials from resonating-group method phase shifts

S. G. Cooper, R. S. Mackintosh, A. Cst, R. G. Lovas

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Phase shifts for nucleon scattering generated by a multichannel resonating-group method (RGM) model of the five-nucleon system are subjected to iterative-perturbative mixed-case inversion for energies below the reaction threshold. The resulting phase-equivalent potentials are compared with local potentials calculated from the inversion of empirical phase shifts. A strong similarity is revealed between the two sets of potentials, most notably in the description by a parity- and energy-dependent local potential. In particular, the RGM-derived and empirical potentials share a distinctive form of parity dependence in which the odd-parity component is of greater radial extent. Comparison with potentials representing single-channel RGM phase shifts exhibits the importance of the coupled channels in terms of local potentials. The relative wave functions derived from RGM are very different from those for the phase-equivalent local potentials. Connections are made with general nucleon-nucleus scattering.

Original languageEnglish
Pages (from-to)1308-1318
Number of pages11
JournalPhysical Review C
Volume50
Issue number3
DOIs
Publication statusPublished - Jan 1 1994

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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