𝔖 Bobbio Scriptorium
✦   LIBER   ✦

s- and p-wave neutron spectroscopy Xf(ii). Intermediate structure in the 28Si + n reaction: Doorway state calculation

✍ Scribed by D Halderson; B Castel; M Divadeenam; H.W Newson


Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
375 KB
Volume
103
Category
Article
ISSN
0003-4916

No coin nor oath required. For personal study only.

✦ Synopsis


A core-particle calculation developed to describe the low-lying structure of Y3i is extended above neutron threshold energy to yield information on the structure of doorway states indicated by the Yii + n reaction. The recent experimental evidence for a J = #-doorway state common to the YSi + n and the '9i + y channels is supported by the calculation which also reproduces correctly the magnitudes of the neutron escape widths and the El radiative strengths of the $-doorway states.

THE MODEL


📜 SIMILAR VOLUMES


s- and p-wave neutron spectroscopy Xf(i)
✍ H.W Newson; W.F.E Pineo; B.-H Choi; J.M Clement; M Divadeenam 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 646 KB

A multilevel R-matrix analysis of Si neutron cross-section data measured at NBS has been performed up to about 4.5 MeV neutron energy. Only a small fraction of the p-and s-wave s.p. strength is observed, but both exhibit local concentrations of strength indicative of doorway structure around 1 and 0

S- and P-wave neutron spectroscopy. Part
📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 47 KB

## 229 photon energy. In particular, the dominant scattering mechanism for small carrier concentrations is found to be polar optical mode scattering, which exhibits a X3 dependence of the absorption coefficient times the index of refraction, (except at the lowest frequencies, where the expected X2