Year: 2017
Type: article
Abstract: Excited states in $^{186}\mathrm{Re}$ with spins up to $J=12\ensuremath{\hbar}$ were investigated in two separate experiments using $^{186}\mathrm{W}(d,2n)$ reactions at beam energies of 12.5 and 14.5 MeV. Two- and threefold $\ensuremath{\gamma}$-ray coincidence data were collected using the CAESAR and CAGRA spectrometers, respectively, each composed of Compton-suppressed high-purity germanium detectors. Analysis of the data revealed rotational bands built on several two-quasiparticle intrinsic states, including a long-lived ${K}^{\ensuremath{\pi}}=({8}^{+})$ isomer. Configuration assignments were supported by an analysis of in-band properties, such as $\left|{g}_{K}\ensuremath{-}{g}_{R}\right|$ values. The excitation energies of the observed intrinsic states were compared with results from multi-quasiparticle blocking calculations, based on the Lipkin-Nogami pairing approach, that included contributions from the residual proton-neutron interactions.
Source: Physical Review C
Authors: D. A. Matters, F. G. Kondev, N. Aoi, Y. Ayyad, A. P. Byrne, M. P. Carpenter, J. J. Carroll, C. J. Chiara, P. M. Davidson, G. D. Dracoulis, Y. D. Fang, C. R. Hoffman, R. O. Hughes, E. Ideguchi, R. V. F. Janssens, S. Kanaya, B. P. Kay, T. Kibédi, G. J. Lane, T. Lauritsen, J. W. McClory, P. Nieminen, S. Noji, A. Odahara, H. J. Ong, A. E. Stuchbery, D. T. Tran, H. Watanabe, A. N. Wilson, Y. Yamamoto, S. Zhu
Institutions: Wright-Patterson Air Force Base, U.S. Air Force Institute of Technology, Argonne National Laboratory, Research Center for Nuclear Physics, The University of Osaka, The University of Osaka, National Superconducting Cyclotron Laboratory, Michigan State University, Australian National University, DEVCOM Army Research Laboratory, RIKEN, RIKEN Nishina Center, Beihang University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Awards: G1140865850, Structure of Exotic Neutron-Rich Nuclei Populated Using Novel Reaction Mechanisms, New directions for nuclear structure research in Australia, G2472000634, G3378822452, Isomers as Probes of Nuclear Structure and Sources of Energetic Photons, G5259331294, G5541680377, G6848031779, G6918803902, G7585636426, 新たなレーザー分光法を用いた中性子過剰核３２Ｎａおよび３２Ｍｇの構造解明
OpenAlex ID: W2740198703