A study of low-lying states of 72As using the 72Ge(p, nγ)72As reaction

S. Mordechaǐ, E. Friedman, A. A. Jaffe, D. Nir, M. Paul

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Abstract

Several low-lying states of 72As have been studied via the γ-rays following the bombardment of 72Ge by protons in the energy range 5.1-6.2 MeV. Gamma-ray spectra were obtained using a Ge(Li) detector, and gamma-gamma coincidences between this detector and a NaI crystal were also investigated. Besides the single previously known excited state at 46 keV, 12 additional excited states were determined in 72As at energies of 213, 242, 308, 317, 333, 343, 413, 438, 454, 512, 523 and (561) keV. The angular distributions of the γ-rays from the 213 and 242 keV levels have also been measured, and the results have been analyzed using the compound nucleus statistical model. The excited states at 213 and 242 keV were found to have spins of (2) and 3 respectively.

Original languageEnglish
Pages (from-to)343-352
Number of pages10
JournalNuclear Physics A
Volume230
Issue number2
DOIs
StatePublished - 23 Sep 1974

Keywords

  • Nuclear reaction

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