Polarization near isobaric analogue resonances

✍ Scribed by J.L. Adams; W.J. Thompson; D. Robson

• Book ID: 104158781
• Publisher: Elsevier Science
• Year: 1966
• Weight: 433 KB
• Volume: 89
• Category: Article
• ISSN: 0029-5582
• DOI: 10.1016/s0029-5582(66)80099-8

✦ Synopsis

For the purpose of analysing isobaric analogue resonances, a single-level resonance formula has been incorporated into nuclear scattering amplitudes found with an optical-model potential. The inclusion of the resonance term leads to polarization magnitudes that are easily measurable. By observing the variation of the polarization near the resonance energy, the j-value of the resonance can be definitely assigned. The method is applicable for resonances with partial widths as low as 5-10 ~ of the total width. Because the j-value of the resonance can be extracted even with a very crude polarization experiment, an important new spectroscopic tool is available for finding the j-value of such levels. Examples of data and theoretical polarization curves for various medium to heavy nuclei are given.