skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; « less
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
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 96; Journal Issue: 1; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
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},
issn = {2469-9985},
number = 1,
volume = 96,
place = {United States},
year = {2017},
month = {7}
}

Works referenced in this record:

Rotational bands and particle-hole excitations at very high spin
journal, March 1985


Evaluation of theoretical conversion coefficients using BrIcc
journal, May 2008

  • Kibédi, T.; Burrows, T. W.; Trzhaskovskaya, M. B.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 589, Issue 2
  • DOI: 10.1016/j.nima.2008.02.051

Nuclear Data Sheets for A = 188
journal, February 2002


Investigation of Re 186 via radiative thermal-neutron capture on Re 185
journal, May 2016


Multi-quasiparticle states in the mass-180 region
journal, August 1995


Configurations and hindered decays of K isomers in deformed nuclei with A > 100
journal, May 2015

  • Kondev, F. G.; Dracoulis, G. D.; Kibédi, T.
  • Atomic Data and Nuclear Data Tables, Vol. 103-104
  • DOI: 10.1016/j.adt.2015.01.001

High-resolution particle spectroscopy of 186 Re
journal, July 2009

  • Wheldon, C.; Ashwood, N. I.; Curtis, N.
  • Journal of Physics G: Nuclear and Particle Physics, Vol. 36, Issue 9
  • DOI: 10.1088/0954-3899/36/9/095102

Nuclear Data Sheets for A = 185
journal, December 2005


Nuclear Ground-State Masses and Deformations
journal, March 1995

  • Moller, P.; Nix, J. R.; Myers, W. D.
  • Atomic Data and Nuclear Data Tables, Vol. 59, Issue 2, p. 185-381
  • DOI: 10.1006/adnd.1995.1002

186Re: Nuclear structure and an isomer of half-life 2 × 105 y
journal, April 1972


Nuclear ground-state masses and deformations: FRDM(2012)
journal, May 2016


New s ‐Process Path and Its Implications for a 187 Re‐ 187 Os Nucleo‐Cosmochronometer
journal, July 2005

  • Hayakawa, T.; Shizuma, T.; Kajino, T.
  • The Astrophysical Journal, Vol. 628, Issue 1
  • DOI: 10.1086/430198

On the decrease in charge radii of multi-quasi particle isomers
journal, February 2007


ESCL8R and LEVIT8R: Software for interactive graphical analysis of HPGe coincidence data sets
journal, July 1995

  • Radford, D. C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 361, Issue 1-2
  • DOI: 10.1016/0168-9002(95)00183-2

Gamma-ray spectroscopy of the doubly-odd nuclide 184Re
journal, December 2005


High precision hyperfine structure measurements in185Re and187Re
journal, December 1981

  • B�ttgenbach, S.; Dicke, R.; G�lz, G.
  • Zeitschrift f�r Physik A Atoms and Nuclei, Vol. 302, Issue 4
  • DOI: 10.1007/BF01414258

The Ame2012 atomic mass evaluation
journal, December 2012


Multi-quasiparticle states in 179Ta and structural changes in the yrast line of the odd tantalum isotopes
journal, April 1997


Untersuchung der Anregungen von186Re nach der (n, ?)-Reaktion
journal, August 1973


New transitions and feeding of the J π = ( 8 + ) isomer in Re 186
journal, November 2015


Review of metastable states in heavy nuclei
journal, May 2016


Nuclear Levels in Re 186
journal, February 1969


Investigation of short-lived isomeric states with half-lives in the μs and ms region
journal, October 1964


Nuclear Data Sheets for A = 186
journal, May 2003