Exploring enhanced low-energy magnetic dipole strength in photon scattering


Exploring enhanced low-energy magnetic dipole strength in photon scattering

Schwengner, R.; Rusev, G.

Strengths of M1 transitions depopulating high-lying 1+ states and of subsequent transitions in cascades populating the first excited state were determined on the basis of large-scale shell-model calculations for the nuclide 54Fe. The results reveal that the spectra of primary M1 transitions from 1+ states only as well as the subsequent cascade M1 transitions show an enhancement of strength toward small energy, similar to that found for a huge number of transitions between states of a wide spin range as observed in light-ion induced reactions. This allows in principle the study of low-energy M1 strength using photon scattering. Based on these results, intensities of M1 transitions under experimental conditions are estimated.

Keywords: Strength functions; M1 transitions; shell model; photon scattering

Permalink: https://www.hzdr.de/publications/Publ-29553
Publ.-Id: 29553