S-matrix and R-matrix determination of the low-energy He-5 and Li-5 resonance parameters
| dc.creator | Csoto, Attila | |
| dc.creator | Hale, G. M. | |
| dc.date | 1996-08-05 | |
| dc.date | 1996-10-23 | |
| dc.date.accessioned | 2026-07-07T11:15:51Z | |
| dc.date.available | 2026-07-07T11:15:51Z | |
| dc.description | We study the low-energy 3/2- and 1/2- states of He-5 and Li-5 in a microscopic cluster model. The scattering phase shifts of Bond (alpha+n) and of Schwandt (alpha+p), respectively, are reproduced well. We determine the resonance parameters by localizing the poles of the analytically continued S-matrix at complex energies. Our results differ from conventional R-matrix resonance parameters, which were extracted from experimental data using the definition of a resonance based on the positions and widths of reaction cross section peaks. However, they nicely agree with the results of an extended R-matrix method which works at complex energies. | |
| dc.description | 9 pages, 1 figure. Final version. Slightly rewritten, results and conclusions unchanged | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9608007 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9608007 | |
| dc.identifier | Phys.Rev.C55:536-539,1997 | |
| dc.identifier | doi:10.1103/PhysRevC.55.536 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/192522 | |
| dc.subject | Nuclear Theory | |
| dc.title | S-matrix and R-matrix determination of the low-energy He-5 and Li-5 resonance parameters | |
| dc.type | text |