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:1480693

Chen, J. ^[1]; Kondev, F. G. ^[1]; Ahmad, I. ^[2]; Carpenter, M. P. ^[2]; Greene, J. P. ^[2]; Janssens, R. V. F. ^[2]; Zhu, S. ^[2]; Ehst, D. ^[1]; Makarashvili, V. ^[1]; Rotsch, D. ^[1]; Smith, N. A. ^[1]

Argonne National Lab. (ANL), Argonne, IL (United States). Nuclear Engineering Division
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division

In this work, absolute γ-ray emission probabilities in the β^- decay of ⁶⁷Cu were measured by means of γ-ray and β^--decay singles and β^--γ coincidences. The new results, together with the known decay scheme of ⁶⁷Cu , were used to determine absolute β^- -decay branching intensities. The present data differ significantly from previously published values. In addition, the half-life of the I^π = 1/2^- isomer in ⁶⁷Zn was measured as T_1/2 = 9.37(4) μs, in a good agreement with earlier measurements. Lastly, from the analysis of the Fermi–Kurie plots, Q_β^- ( 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_β^- ( g.s.) = 561.3 (15) keV recommended in the latest Atomic Mass Evaluation.

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Research Organization:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC02-05CH11231; AC02-06CH11357

OSTI ID:: 1480693

Alternate ID(s):: OSTI ID: 1224567

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

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 11 works

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