First experimental test of X(5) critical-point symmetry in the A~130 mass region: Low-spin states and the collective structure of Ce130

A. F. Mertz; E. A. McCutchan; R. F. Casten; R. J. Casperson; A. Heinz; B. Huber; R. Lüttke; J. Qian; B. Shoraka; J. R. Terry; V. Werner; E. Williams; R. Winkler

doi:10.1103/PhysRevC.77.014307

First experimental test of X(5) critical-point symmetry in the A~130 mass region: Low-spin states and the collective structure of Ce130

A. F. Mertz^*, E. A. McCutchan, R. F. Casten, R. J. Casperson, A. Heinz, B. Huber, R. Lüttke, J. Qian, B. Shoraka, J. R. Terry, V. Werner, E. Williams, R. Winkler

^*Corresponding author for this work

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

17 Citations (Scopus)

Abstract

Excited, low-spin states in Ce130 are populated in the β+/ε decay of Pr130 and studied through off-beam γ-ray spectroscopy at the Yale moving tape collector. New coincidence data lead to the construction of a substantially revised level scheme. The low-lying states of Ce130 are compared with the predictions of the X(5) critical-point model and the X(5)-β4 model, and the latter is found to give better agreement with the data in terms of energies. Discrepancies in the relative B(E2) values in Ce130 and the geometrical models suggest that the γ degree of freedom may play an important role in this mass region.

Original language	English
Article number	014307
Journal	Physical Review C - Nuclear Physics
Volume	77
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.77.014307
Publication status	Published - 10 Jan 2008
Externally published	Yes

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Mertz, A. F., McCutchan, E. A., Casten, R. F., Casperson, R. J., Heinz, A., Huber, B., Lüttke, R., Qian, J., Shoraka, B., Terry, J. R., Werner, V., Williams, E., & Winkler, R. (2008). First experimental test of X(5) critical-point symmetry in the A~130 mass region: Low-spin states and the collective structure of Ce130. Physical Review C - Nuclear Physics, 77(1), Article 014307. https://doi.org/10.1103/PhysRevC.77.014307

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title = "First experimental test of X(5) critical-point symmetry in the A~130 mass region: Low-spin states and the collective structure of Ce130",

abstract = "Excited, low-spin states in Ce130 are populated in the β+/ε decay of Pr130 and studied through off-beam γ-ray spectroscopy at the Yale moving tape collector. New coincidence data lead to the construction of a substantially revised level scheme. The low-lying states of Ce130 are compared with the predictions of the X(5) critical-point model and the X(5)-β4 model, and the latter is found to give better agreement with the data in terms of energies. Discrepancies in the relative B(E2) values in Ce130 and the geometrical models suggest that the γ degree of freedom may play an important role in this mass region.",

author = "Mertz, {A. F.} and McCutchan, {E. A.} and Casten, {R. F.} and Casperson, {R. J.} and A. Heinz and B. Huber and R. L{\"u}ttke and J. Qian and B. Shoraka and Terry, {J. R.} and V. Werner and E. Williams and R. Winkler",

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Mertz, AF, McCutchan, EA, Casten, RF, Casperson, RJ, Heinz, A, Huber, B, Lüttke, R, Qian, J, Shoraka, B, Terry, JR, Werner, V, Williams, E & Winkler, R 2008, 'First experimental test of X(5) critical-point symmetry in the A~130 mass region: Low-spin states and the collective structure of Ce130', Physical Review C - Nuclear Physics, vol. 77, no. 1, 014307. https://doi.org/10.1103/PhysRevC.77.014307

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T1 - First experimental test of X(5) critical-point symmetry in the A~130 mass region

T2 - Low-spin states and the collective structure of Ce130

AU - Mertz, A. F.

AU - McCutchan, E. A.

AU - Casten, R. F.

AU - Casperson, R. J.

AU - Heinz, A.

AU - Huber, B.

AU - Lüttke, R.

AU - Qian, J.

AU - Shoraka, B.

AU - Terry, J. R.

AU - Werner, V.

AU - Williams, E.

AU - Winkler, R.

PY - 2008/1/10

Y1 - 2008/1/10

N2 - Excited, low-spin states in Ce130 are populated in the β+/ε decay of Pr130 and studied through off-beam γ-ray spectroscopy at the Yale moving tape collector. New coincidence data lead to the construction of a substantially revised level scheme. The low-lying states of Ce130 are compared with the predictions of the X(5) critical-point model and the X(5)-β4 model, and the latter is found to give better agreement with the data in terms of energies. Discrepancies in the relative B(E2) values in Ce130 and the geometrical models suggest that the γ degree of freedom may play an important role in this mass region.

AB - Excited, low-spin states in Ce130 are populated in the β+/ε decay of Pr130 and studied through off-beam γ-ray spectroscopy at the Yale moving tape collector. New coincidence data lead to the construction of a substantially revised level scheme. The low-lying states of Ce130 are compared with the predictions of the X(5) critical-point model and the X(5)-β4 model, and the latter is found to give better agreement with the data in terms of energies. Discrepancies in the relative B(E2) values in Ce130 and the geometrical models suggest that the γ degree of freedom may play an important role in this mass region.

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DO - 10.1103/PhysRevC.77.014307

M3 - Article

SN - 0556-2813

VL - 77

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 1

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ER -

First experimental test of X(5) critical-point symmetry in the A~130 mass region: Low-spin states and the collective structure of Ce130

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