Evolution of level density step structures from Fe-56, Fe-57 to Mo-96, Mo-97

2003/02/24 by A. Schiller, E. Algin, E. Tavukcu +12 · 6 citations
Physics and Astronomy · #Astronomical and nuclear sciences #Nuclear Physics and Applications #Nuclear physics research studies #nucl-ex

paper · pdf · doi:10.1103/physrevc.68.054326

published as Phys.Rev. C68 (2003) 054326 · 9 pages, including 5 figures

arxiv created 2003/02/24 · openalex publication_date 2003/02/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Level densities have been extracted from primary gamma spectra for 56,57-Fe and 96,97-Mo nuclei using (3-He,alpha gamma) and (3-He,3-He') reactions on 57-Fe and 97-Mo targets. The level density curves reveal step structures above the pairing gap due to the breaking of nucleon Cooper pairs. The location of the step structures in energy and their shapes arise from the interplay between single-particle energies and seniority-conserving and seniority-non-conserving interactions.

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