| Автор | J R M Annand |
| Автор | R B Galloway |
| Дата выпуска | 1985-12-01 |
| dc.description | Neutron elastic scattering analysing powers have been measured at 3 MeV incident energy for <sup>nat</sup>W, <sup>nat</sup>Hg, <sup>nat</sup>Tl, <sup>nat</sup>Pb, <sup>209</sup>Bi and <sup>238</sup>U. Differential cross sections have also been measured for <sup>nat</sup>Hg, <sup>nat</sup>Tl, <sup>nat</sup>Pb and <sup>208</sup>Bi. A local, phenomenological, spherical optical model analysis of these data is performed with comparison made between pure Woods-Saxon real form factors and those having surface-peaked components. The latter have been predicted in dispersion integral calculations. The effects of introducing an imaginary spin-orbit potential component are also tested. For <sup>nat</sup>W and <sup>238</sup>U a deformed phenomenological optical potential is used in coupled-channels calculations. Coupled-channels effects are also investigated for <sup>208</sup>Pb, assuming it to be a harmonic vibrator. Microscopic calculations of real and imaginary potentials are made using the methods of Brieva and Rook, (1977,8), and Jeukenne et al. (1977). Calculation of the spin-orbit interaction is less sophisticated with an energy- and density-independent form used. At 3 MeV compound elastic scattering must be accounted for in all nuclei presently studied. This has been calculated using a recent formulation of the statistical model. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Neutron analysing powers and a low-energy optical model analysis |
| Тип | paper |
| DOI | 10.1088/0305-4616/11/12/011 |
| Print ISSN | 0305-4616 |
| Журнал | Journal of Physics G: Nuclear Physics |
| Том | 11 |
| Первая страница | 1341 |
| Последняя страница | 1354 |
| Аффилиация | J R M Annand; Dept. of Phys., Edinburgh Univ., UK |
| Аффилиация | R B Galloway; Dept. of Phys., Edinburgh Univ., UK |
| Выпуск | 12 |
