Precise absolute γ -ray and β- -decay branching intensities in the decay of Cu2967

Chen, J.; Kondev, F. G.; Ahmad, I.; Carpenter, M. P.; Greene, J. P.; Janssens, R. V.  F.; Zhu, S.; Ehst, D.; Makarashvili, V.; Rotsch, D.; Smith, N. A.

doi:10.1103/PhysRevC.92.044330

Title: Precise absolute $γ$ -ray and $β^{-}$ -decay branching intensities in the decay of ${}_{29}^{67}{Cu}$

Journal Article · Wed Oct 28 00:00:00 EDT 2015 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.92.044330· OSTI ID:1391769

Chen, J.; Kondev, F. G.; Ahmad, I.; Carpenter, M. P.; Greene, J. P.; Janssens, R. V. F.; Zhu, S.; Ehst, D.; Makarashvili, V.; Rotsch, D.; Smith, N. A.

Absolute gamma-ray emission probabilities in the beta(-)decay of Cu-67 weremeasured by means of gamma-ray and beta(-)-decay singles and beta(-)-gamma coincidences. The new results, together with the known decay scheme of Cu-67, were used to determine absolute beta(-)-decay branching intensities. The present data differ significantly from previously published values. In addition, the half-life of the I-pi = 1/2(-) isomer in Zn-67 was measured as T-1/2 = 9.37( 4) mu s, in a good agreement with earlier measurements. From the analysis of the Fermi-Kurie plots, Q(beta-)(g.s.) = 560.3( 10) keV was deduced, which differs from the previously measured value of 577( 8) keV but is in good agreement with Q(beta-)(g.s.) = 561.3(15) keV recommended in the latest Atomic Mass Evaluation.

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Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

DOE Contract Number:: AC02-06CH11357

OSTI ID:: 1391769

Journal Information:: Physical Review. C, Nuclear Physics, Vol. 92, Issue 4; ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

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