G9/2 isobaric analogue resonances in the 56Fe(p, γ)57Co reaction

I. Fodor, J. Sziklai, B. Kardon, J. Rama Rao, K. Beckert, F. Herrmann, H. Schobbert

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Abstract

Resonances consistent with fragmented g9/2 analogue resonance have been found in 57Co corresponding to the Ex=2.454 MeV level in the 57Fe parent nucleus. The resonance was located through the 56Fe(p, gamma )57Co reaction. Total gamma -ray spectra were measured with a Ge(Li) detector in 2 keV steps in the expected proton energy range. Excitation functions for the different primary gamma transitions were constructed. The g9/2 IAR were found in two components at E p=3728 and 3735 keV. The angular distributions of gamma rays were measured at these two bombarding proton energies. The two resonances were suggested to have spin and parity Jpi=9/2 + based on the gamma -ray excitation functions and angular distribution measurements. The gamma -branchings and absolute transition probabilities were also determined. The Ml gamma transitions from the g 9/2 IAR components going to the possible anti-analogue level at Ex=4.585 MeV excitation energy have absolute transition strengths of 1.8*10-2 Wu and 1.2*10-2 Wu.

Original languageEnglish
Article number016
Pages (from-to)1117-1125
Number of pages9
JournalJournal of Physics G: Nuclear Physics
Volume4
Issue number7
DOIs
Publication statusPublished - 1978

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analogs
proton energy
angular distribution
gamma rays
excitation
gamma ray spectra
transition probabilities
parity
distribution functions
nuclei
detectors
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Fodor, I., Sziklai, J., Kardon, B., Rama Rao, J., Beckert, K., Herrmann, F., & Schobbert, H. (1978). G9/2 isobaric analogue resonances in the 56Fe(p, γ)57Co reaction. Journal of Physics G: Nuclear Physics, 4(7), 1117-1125. [016]. https://doi.org/10.1088/0305-4616/4/7/016

G9/2 isobaric analogue resonances in the 56Fe(p, γ)57Co reaction. / Fodor, I.; Sziklai, J.; Kardon, B.; Rama Rao, J.; Beckert, K.; Herrmann, F.; Schobbert, H.

In: Journal of Physics G: Nuclear Physics, Vol. 4, No. 7, 016, 1978, p. 1117-1125.

Research output: Contribution to journalArticle

Fodor, I, Sziklai, J, Kardon, B, Rama Rao, J, Beckert, K, Herrmann, F & Schobbert, H 1978, 'G9/2 isobaric analogue resonances in the 56Fe(p, γ)57Co reaction', Journal of Physics G: Nuclear Physics, vol. 4, no. 7, 016, pp. 1117-1125. https://doi.org/10.1088/0305-4616/4/7/016
Fodor, I. ; Sziklai, J. ; Kardon, B. ; Rama Rao, J. ; Beckert, K. ; Herrmann, F. ; Schobbert, H. / G9/2 isobaric analogue resonances in the 56Fe(p, γ)57Co reaction. In: Journal of Physics G: Nuclear Physics. 1978 ; Vol. 4, No. 7. pp. 1117-1125.
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AU - Herrmann, F.

AU - Schobbert, H.

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AB - Resonances consistent with fragmented g9/2 analogue resonance have been found in 57Co corresponding to the Ex=2.454 MeV level in the 57Fe parent nucleus. The resonance was located through the 56Fe(p, gamma )57Co reaction. Total gamma -ray spectra were measured with a Ge(Li) detector in 2 keV steps in the expected proton energy range. Excitation functions for the different primary gamma transitions were constructed. The g9/2 IAR were found in two components at E p=3728 and 3735 keV. The angular distributions of gamma rays were measured at these two bombarding proton energies. The two resonances were suggested to have spin and parity Jpi=9/2 + based on the gamma -ray excitation functions and angular distribution measurements. The gamma -branchings and absolute transition probabilities were also determined. The Ml gamma transitions from the g 9/2 IAR components going to the possible anti-analogue level at Ex=4.585 MeV excitation energy have absolute transition strengths of 1.8*10-2 Wu and 1.2*10-2 Wu.

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