Lifetimes of some low-lying levels of Co55

S. E. Caldwell, L. A. Alexander, R. G. Arns, B. J. Brunner, M. A. Kovash, C. M. Rozsa, J. W. Smith

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Excitation energies and nuclear lifetimes of levels in Co55 have been measured via the reactions Fe54(He3, dγ)Co55 induced by 11.0 MeV incident He++3 particles. The Doppler shifted γ-ray spectra, taken in coincidence with the outgoing deuterons, were fitted by a line shape analysis program to determine the lifetimes. Experimental results for excitation energies (±1 keV) and lifetimes (ps) are: 2166, 0.141-0.021+0.020; 2566, 0.620-0.090+0.120; 2940, 0.590; 3324, 0.090-0.012+0.017; 4166, 0.050-0.005+0.010. NUCLEAR STRUCTURE Fe54(He3, dγ), E=11 MeV; measured Eγ, Doppler shifts; Co55 deduced levels, lifetimes.

Original languageEnglish
Pages (from-to)2084-2087
Number of pages4
JournalPhysical Review C - Nuclear Physics
Issue number6
StatePublished - 1975

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Copyright 2015 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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