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Title: In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re 186

Abstract

Excited states in 186Re with spins up to J = 12~ were investigated in two separate experiments using 186W(d, 2n) reactions at beam energies of 12.5 MeV and 14.5 MeV. Two- and three-fold γ-ray coincidence data were collected using the CAESAR and CAGRA spectrometers, respectively, each composed of Compton-suppressed HpGe detectors. Analysis of the data revealed rotational bands built on several two-quasiparticle intrinsic states, including a long-lived Kπ = (8+) isomer. Configuration assignments were supported by an analysis of in-band properties, such as |gK - gR| values. The excitation energies of the observed intrinsic states were compared with results from multiquasiparticle blocking calculations, based on the Lipkin-Nogami pairing approach, that included contributions from the residual proton-neutron interactions.

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Nuclear Physics
OSTI Identifier:
1389637
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review C; Journal Volume: 96; Journal Issue: 1
Country of Publication:
United States
Language:
English

Citation Formats

Matters, D. A., Kondev, F. G., Aoi, N., Ayyad, Y., Byrne, A. P., Carpenter, M. P., Carroll, J. J., Chiara, C. J., Davidson, P. M., Dracoulis, G. D., Fang, Y. D., Hoffman, C. R., Hughes, R. O., Ideguchi, E., Janssens, R. V. F., Kanaya, S., Kay, B. P., Kibédi, T., Lane, G. J., Lauritsen, T., McClory, J. W., Nieminen, P., Noji, S., Odahara, A., Ong, H. J., Stuchbery, A. E., Tran, D. T., Watanabe, H., Wilson, A. N., Yamamoto, Y., and Zhu, S. In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re186. United States: N. p., 2017. Web. doi:10.1103/PhysRevC.96.014318.
Matters, D. A., Kondev, F. G., Aoi, N., Ayyad, Y., Byrne, A. P., Carpenter, M. P., Carroll, J. J., Chiara, C. J., Davidson, P. M., Dracoulis, G. D., Fang, Y. D., Hoffman, C. R., Hughes, R. O., Ideguchi, E., Janssens, R. V. F., Kanaya, S., Kay, B. P., Kibédi, T., Lane, G. J., Lauritsen, T., McClory, J. W., Nieminen, P., Noji, S., Odahara, A., Ong, H. J., Stuchbery, A. E., Tran, D. T., Watanabe, H., Wilson, A. N., Yamamoto, Y., & Zhu, S. In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re186. United States. doi:10.1103/PhysRevC.96.014318.
Matters, D. A., Kondev, F. G., Aoi, N., Ayyad, Y., Byrne, A. P., Carpenter, M. P., Carroll, J. J., Chiara, C. J., Davidson, P. M., Dracoulis, G. D., Fang, Y. D., Hoffman, C. R., Hughes, R. O., Ideguchi, E., Janssens, R. V. F., Kanaya, S., Kay, B. P., Kibédi, T., Lane, G. J., Lauritsen, T., McClory, J. W., Nieminen, P., Noji, S., Odahara, A., Ong, H. J., Stuchbery, A. E., Tran, D. T., Watanabe, H., Wilson, A. N., Yamamoto, Y., and Zhu, S. Sat . "In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re186". United States. doi:10.1103/PhysRevC.96.014318.
@article{osti_1389637,
title = {In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re186},
author = {Matters, D. A. and Kondev, F. G. and Aoi, N. and Ayyad, Y. and Byrne, A. P. and Carpenter, M. P. and Carroll, J. J. and Chiara, C. J. and Davidson, P. M. and Dracoulis, G. D. and Fang, Y. D. and Hoffman, C. R. and Hughes, R. O. and Ideguchi, E. and Janssens, R. V. F. and Kanaya, S. and Kay, B. P. and Kibédi, T. and Lane, G. J. and Lauritsen, T. and McClory, J. W. and Nieminen, P. and Noji, S. and Odahara, A. and Ong, H. J. and Stuchbery, A. E. and Tran, D. T. and Watanabe, H. and Wilson, A. N. and Yamamoto, Y. and Zhu, S.},
abstractNote = {Excited states in 186Re with spins up to J = 12~ were investigated in two separate experiments using 186W(d, 2n) reactions at beam energies of 12.5 MeV and 14.5 MeV. Two- and three-fold γ-ray coincidence data were collected using the CAESAR and CAGRA spectrometers, respectively, each composed of Compton-suppressed HpGe detectors. Analysis of the data revealed rotational bands built on several two-quasiparticle intrinsic states, including a long-lived Kπ = (8+) isomer. Configuration assignments were supported by an analysis of in-band properties, such as |gK - gR| values. The excitation energies of the observed intrinsic states were compared with results from multiquasiparticle blocking calculations, based on the Lipkin-Nogami pairing approach, that included contributions from the residual proton-neutron interactions.},
doi = {10.1103/PhysRevC.96.014318},
journal = {Physical Review C},
number = 1,
volume = 96,
place = {United States},
year = {Sat Jul 01 00:00:00 EDT 2017},
month = {Sat Jul 01 00:00:00 EDT 2017}
}