dorsal/arxiv
View SchemaLocal $^4$He--p potentials from RGM phase shifts
| Authors | S. G. Cooper, R. S. Mackintosh, A. Csoto, R. G. Lovas |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9309003 |
| URL | https://arxiv.org/abs/nucl-th/9309003 |
| DOI | 10.1103/PhysRevC.50.1308 |
| Journal | Phys.Rev.C50:1308-1318,1994 |
Abstract
Phase shifts for $\alpha$ + nucleon scattering generated by a multichannel 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 to those for the phase-equivalent local potentials.
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"abstract": "Phase shifts for $\\alpha$ + nucleon scattering generated by a multichannel\nRGM model of the five-nucleon system are subjected to iterative-perturbative\n``mixed-case\" inversion for energies below the reaction threshold. The\nresulting phase-equivalent potentials are compared with local potentials\ncalculated from the inversion of empirical phase shifts. A strong similarity is\nrevealed between the two sets of potentials, most notably in the description by\na parity- and energy-dependent local potential. In particular, the RGM-derived\nand empirical potentials share a distinctive form of parity dependence in which\nthe odd-parity component is of greater radial extent. Comparison with\npotentials representing single-channel RGM phase shifts exhibits the importance\nof the coupled channels in terms of local potentials. The relative wave\nfunctions derived from RGM are very different to those for the phase-equivalent\nlocal potentials.",
"arxiv_id": "nucl-th/9309003",
"authors": [
"S. G. Cooper",
"R. S. Mackintosh",
"A. Csoto",
"R. G. Lovas"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.50.1308",
"journal_ref": "Phys.Rev.C50:1308-1318,1994",
"title": "Local $^4$He--p potentials from RGM phase shifts",
"url": "https://arxiv.org/abs/nucl-th/9309003"
},
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