English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

A low-energy enhancement (LEE) has been observed in the deexcitation$\gamma$-ray strength function ($\gamma$SF) of compound nuclei. The LEE hasbeen a subject of intense experimental and theoretical interest since itsdiscovery, and, if the LEE persists in heavy neutron-rich nuclei, it would havesignificant effects on calculations of r-process nucleosynthesis. Standardconfiguration-interaction (CI) shell-model calculations in medium-mass nucleihave attributed the LEE to the magnetic dipole $\gamma$SF but such calculationsare computationally intractable in heavy nuclei. We review a combination ofbeyond-mean-field many-body methods within the framework of the CI shell modelthat enables the calculation of $\gamma$SF in heavy nuclei, and discuss therecent theoretical identification of a LEE in the magnetic dipole $\gamma$SF oflanthanide isotopes.

Magnetic dipole $\gamma$-ray strength functions of heavy nuclei in the configuration-interaction shell model