Transitional γ strength in Cd isotopes

2013/10/26 by A. C. Larsen, I. E. Ruud, A. Bürger +12 · 1 citation
Physics and Astronomy · #nucl-ex

paper · pdf · doi:10.1103/physrevc.87.014319

published as Phys. Rev. C 87, 014319 (2013) · 10 pages, 11 figures

arxiv created 2013/10/26 · arxiv updated 2013/10/29

Abstract

The level densities and γ-ray strength functions of ^{105,106,111,112}Cd have been extracted from particle-γ coincidence data using the Oslo method. The level densities are in very good agreement with known levels at low excitation energy. The γ-ray strength functions display no strong enhancement for low γ energies. However, more low-energy strength is apparent for ^105,106Cd than for ^111,112Cd. For γ energies above ≈ 4 MeV, there is evidence for some extra strength, similar to what has been previously observed for the Sn isotopes. The origin of this extra strength is unclear; it might be due to E1 and M1 transitions originating from neutron skin oscillations or the spin-flip resonance, respectively.

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