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

Authors:
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Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1373127
Grant/Contract Number:
AC02-06CH11357
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 96; Journal Issue: 1; Related Information: CHORUS Timestamp: 2017-07-27 22:10:16; 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 Re 186. 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 Re 186. 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. 2017. "In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re 186". United States. doi:10.1103/PhysRevC.96.014318.
@article{osti_1373127,
title = {In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re 186},
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 = {},
doi = {10.1103/PhysRevC.96.014318},
journal = {Physical Review C},
number = 1,
volume = 96,
place = {United States},
year = 2017,
month = 7
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on July 27, 2018
Publisher's Accepted Manuscript

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  • 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 frommore » multiquasiparticle blocking calculations, based on the Lipkin-Nogami pairing approach, that included contributions from the residual proton-neutron interactions.« less
  • Cited by 2
  • Medium and high-spin states in Ce-133 were investigated using the Cd-116(Ne-22, 5n) reaction and the Gammasphere array. The level scheme was extended up to an excitation energy of similar to 22.8 MeV and spin 93/2 (h) over bar. Eleven bands of quadrupole transitions and two new dipole bands are identified. The connections to low-lying states of the previously known, high-spin triaxial bands were firmly established, thus fixing the excitation energy and, in many cases, the spin parity of the levels. Based on comparisons with cranked Nilsson-Strutinsky calculations and tilted axis cranking covariant density functional theory, it is shown that allmore » observed bands are characterized by pronounced triaxiality. Competing multiquasiparticle configurations are found to contribute to a rich variety of collective phenomena in this nucleus.« less
  • Background: The 31S(p,gamma) 32Cl reaction becomes important for sulfur production in novae if the P-31(p, alpha)Si-28 reaction rate is somewhat greater than currently accepted. The rate of the S-31(p,gamma) Cl-32 reaction is uncertain, primarily due to the properties of resonances at E-c.m. = 156 and 549 keV. Purpose: We precisely determined the excitation energies of states in Cl-32 through high-resolution. spectroscopy including the two states most important for the S-31(p,gamma) Cl-32 reaction at nova temperatures. Method: Excited states in Cl-32 were populated using the B-10(Mg-24, 2n) Cl-32 reaction with a Mg-24 beam from the ATLAS facility at Argonne National Laboratory.more » The reaction channel of interest was selected using recoils in the Fragment Mass Analyzer, and we determined precise level energies by detecting. rays with Gammasphere. Results: We also observed. rays from the decay of six excited states in Cl-32. The excitation energies for two unbound levels at E-x = 1738.1 (6) keV and 2130.5 (10) keV were determined and found to be in agreement with a previous high-precision measurement of the S-32(He-3, t) Cl-32 reaction [1]. Conclusions: An updated 31S(p,gamma) Cl-32 reaction rate is presented. With the excitation energies of important levels firmly established, the dominant uncertainty in the reaction rate at nova temperatures is due to the strength of the resonance corresponding to the 2131-keV state in Cl-32.« less