Structure and Total Strength of the Magnetic Dipole Resonance on Excited States in sd-Shell Nuclei

Autor: I. V. Kurhuz, V. M. Mischenko, A. S. Kachan, S. N. Utenkov
Rok vydání: 2019
Předmět:
Zdroj: Bulletin of the Russian Academy of Sciences: Physics. 83:1545-1548
ISSN: 1934-9432
1062-8738
DOI: 10.3103/s1062873819120086
Popis: The gamma-decay of resonance-like structures observed in the reaction of the radiative capture of protons by 22Ne, 26Mg, 30Si, 34,36S, and 38Ar nuclei in the 7–12 MeV region of excitation energies is studied. The excitation functions of this reaction are measured. The resonance strengths of states in energy range Ep = 1.0–3.0 MeV of accelerated protons are determined. The discrete distributions of magnetic dipole γ-transitions between the ground and excited states for sd-shell nuclei are of a resonance nature. A magnetic dipole resonance is identified for the ground and excited states in the above nuclei. The position of the magnetic dipole resonance on the excited states coincides with the one predicted by the Brink–Axel hypothesis for nuclei at the beginning of a subshell.
Databáze: OpenAIRE