In-beam spectroscopy of medium- and high-spin states in Ce 133

A. D. Ayangeakaa; U. Garg; C. M. Petrache; S. Guo; P. W. Zhao; J. T. Matta; B. K. Nayak; D. Patel; R. V.F. Janssens; M. P. Carpenter; C. J. Chiara; F. G. Kondev; T. Lauritsen; D. Seweryniak; S. Zhu; S. S. Ghugre; R. Palit

doi:10.1103/PhysRevC.93.054317

In-beam spectroscopy of medium- and high-spin states in Ce 133

A. D. Ayangeakaa
, U. Garg
, C. M. Petrache
, S. Guo
, P. W. Zhao
, J. T. Matta
, B. K. Nayak
, D. Patel
, R. V.F. Janssens
, M. P. Carpenter
, C. J. Chiara
, F. G. Kondev
, T. Lauritsen
, D. Seweryniak
, S. Zhu
, S. S. Ghugre
, R. Palit

Neutrino Research

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Medium and high-spin states in Ce133 were investigated using the Cd116(Ne22, 5n) reaction and the Gammasphere array. The level scheme was extended up to an excitation energy of ∼22.8 MeV and spin 93/2. 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 all observed bands are characterized by pronounced triaxiality. Competing multiquasiparticle configurations are found to contribute to a rich variety of collective phenomena in this nucleus.

Original language	English
Article number	054317
Journal	Physical Review C
Volume	93
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.93.054317
State	Published - May 12 2016

Funding

This work was supported in part by the U.S. National Science Foundation Grants No. PHY07-58100, No. PHY-0822648, No. PHY-1068192, and No. PHY-1419765, and the U.S. Department of Energy, Office of Nuclear Physics, under Grant No. DE-FG02-94ER40834 (UM) and Contract No. DE-AC02-06CH11357 (ANL). This research used resources of ANL's ATLAS facility, which is a DOE Office of Science User Facility.

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Ayangeakaa, A. D., Garg, U., Petrache, C. M., Guo, S., Zhao, P. W., Matta, J. T., Nayak, B. K., Patel, D., Janssens, R. V. F., Carpenter, M. P., Chiara, C. J., Kondev, F. G., Lauritsen, T., Seweryniak, D., Zhu, S., Ghugre, S. S., & Palit, R. (2016). In-beam spectroscopy of medium- and high-spin states in Ce 133. Physical Review C, 93(5), Article 054317. https://doi.org/10.1103/PhysRevC.93.054317

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title = "In-beam spectroscopy of medium- and high-spin states in Ce 133",

abstract = "Medium and high-spin states in Ce133 were investigated using the Cd116(Ne22, 5n) reaction and the Gammasphere array. The level scheme was extended up to an excitation energy of ∼22.8 MeV and spin 93/2. 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 all observed bands are characterized by pronounced triaxiality. Competing multiquasiparticle configurations are found to contribute to a rich variety of collective phenomena in this nucleus.",

author = "Ayangeakaa, \{A. D.\} and U. Garg and Petrache, \{C. M.\} and S. Guo and Zhao, \{P. W.\} and Matta, \{J. T.\} and Nayak, \{B. K.\} and D. Patel and Janssens, \{R. V.F.\} and Carpenter, \{M. P.\} and Chiara, \{C. J.\} and Kondev, \{F. G.\} and T. Lauritsen and D. Seweryniak and S. Zhu and Ghugre, \{S. S.\} and R. Palit",

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AU - Ayangeakaa, A. D.

AU - Garg, U.

AU - Petrache, C. M.

AU - Guo, S.

AU - Zhao, P. W.

AU - Matta, J. T.

AU - Nayak, B. K.

AU - Patel, D.

AU - Janssens, R. V.F.

AU - Carpenter, M. P.

AU - Chiara, C. J.

AU - Kondev, F. G.

AU - Lauritsen, T.

AU - Seweryniak, D.

AU - Zhu, S.

AU - Ghugre, S. S.

AU - Palit, R.

PY - 2016/5/12

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N2 - Medium and high-spin states in Ce133 were investigated using the Cd116(Ne22, 5n) reaction and the Gammasphere array. The level scheme was extended up to an excitation energy of ∼22.8 MeV and spin 93/2. 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 all observed bands are characterized by pronounced triaxiality. Competing multiquasiparticle configurations are found to contribute to a rich variety of collective phenomena in this nucleus.

AB - Medium and high-spin states in Ce133 were investigated using the Cd116(Ne22, 5n) reaction and the Gammasphere array. The level scheme was extended up to an excitation energy of ∼22.8 MeV and spin 93/2. 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 all observed bands are characterized by pronounced triaxiality. Competing multiquasiparticle configurations are found to contribute to a rich variety of collective phenomena in this nucleus.

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VL - 93

JO - Physical Review C

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ER -

In-beam spectroscopy of medium- and high-spin states in Ce 133

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