Evidence for triaxial deformation near N=86: Collective bands in 152,153Dy and 153Ho

D. E. Appelbe; P. J. Twin; C. W. Beausang; D. M. Cullen; D. Curien; G. Duchêne; S. Ertürk; Ch Finck; B. Haas; E. S. Paul; D. C. Radford; C. Rigollet; M. B. Smith; O. Stezowski; J. C. Waddington; A. N. Wilson

doi:10.1103/PhysRevC.66.044305

Evidence for triaxial deformation near N=86: Collective bands in ^152,153Dy and ¹⁵³Ho

D. E. Appelbe^*, P. J. Twin, C. W. Beausang, D. M. Cullen, D. Curien, G. Duchêne, S. Ertürk, Ch Finck, B. Haas, E. S. Paul, D. C. Radford, C. Rigollet, M. B. Smith, O. Stezowski, J. C. Waddington, A. N. Wilson

^*Corresponding author for this work

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

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Abstract

The N=86,87 isotopes of dysprosium and holmium have been investigated using the Eurogam II γ-ray spectrometer. A new collective rotational band has been observed in ¹⁵³Ho and the previously observed vi_13/2 band in ¹⁵³Dy has been extended to much higher spin. Comparing these bands and similar bands in ¹⁵²Dy with the collective bands in the N=90 isotopes of Dy, Ho, and Er suggests that the first h_11/2 proton crossing is not observed at N=86,87. This observation has led to the reinterpretation of four of the previously observed bands in ¹⁵²Dy. It is proposed that the low deformation collective bands in ^152,153Dy and ¹⁵³Ho are associated with a triaxial shape with large positive gamma and that they have a similar origin to the recently observed triaxial superdeformed bands in ^163-165Lu.

Original language	English
Article number	044305
Pages (from-to)	443051-443059
Number of pages	9
Journal	Physical Review C - Nuclear Physics
Volume	66
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.66.044305
Publication status	Published - 1 Oct 2002
Externally published	Yes

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Appelbe, D. E., Twin, P. J., Beausang, C. W., Cullen, D. M., Curien, D., Duchêne, G., Ertürk, S., Finck, C., Haas, B., Paul, E. S., Radford, D. C., Rigollet, C., Smith, M. B., Stezowski, O., Waddington, J. C., & Wilson, A. N. (2002). Evidence for triaxial deformation near N=86: Collective bands in ^152,153Dy and ¹⁵³Ho. Physical Review C - Nuclear Physics, 66(4), 443051-443059. Article 044305. https://doi.org/10.1103/PhysRevC.66.044305

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title = "Evidence for triaxial deformation near N=86: Collective bands in 152,153Dy and 153Ho",

abstract = "The N=86,87 isotopes of dysprosium and holmium have been investigated using the Eurogam II γ-ray spectrometer. A new collective rotational band has been observed in 153Ho and the previously observed vi13/2 band in 153Dy has been extended to much higher spin. Comparing these bands and similar bands in 152Dy with the collective bands in the N=90 isotopes of Dy, Ho, and Er suggests that the first h11/2 proton crossing is not observed at N=86,87. This observation has led to the reinterpretation of four of the previously observed bands in 152Dy. It is proposed that the low deformation collective bands in 152,153Dy and 153Ho are associated with a triaxial shape with large positive gamma and that they have a similar origin to the recently observed triaxial superdeformed bands in 163-165Lu.",

author = "Appelbe, {D. E.} and Twin, {P. J.} and Beausang, {C. W.} and Cullen, {D. M.} and D. Curien and G. Duch{\^e}ne and S. Ert{\"u}rk and Ch Finck and B. Haas and Paul, {E. S.} and Radford, {D. C.} and C. Rigollet and Smith, {M. B.} and O. Stezowski and Waddington, {J. C.} and Wilson, {A. N.}",

year = "2002",

month = oct,

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doi = "10.1103/PhysRevC.66.044305",

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journal = "Physical Review C - Nuclear Physics",

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Appelbe, DE, Twin, PJ, Beausang, CW, Cullen, DM, Curien, D, Duchêne, G, Ertürk, S, Finck, C, Haas, B, Paul, ES, Radford, DC, Rigollet, C, Smith, MB, Stezowski, O, Waddington, JC & Wilson, AN 2002, 'Evidence for triaxial deformation near N=86: Collective bands in ^152,153Dy and ¹⁵³Ho', Physical Review C - Nuclear Physics, vol. 66, no. 4, 044305, pp. 443051-443059. https://doi.org/10.1103/PhysRevC.66.044305

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T1 - Evidence for triaxial deformation near N=86

T2 - Collective bands in 152,153Dy and 153Ho

AU - Appelbe, D. E.

AU - Twin, P. J.

AU - Beausang, C. W.

AU - Cullen, D. M.

AU - Curien, D.

AU - Duchêne, G.

AU - Ertürk, S.

AU - Finck, Ch

AU - Haas, B.

AU - Paul, E. S.

AU - Radford, D. C.

AU - Rigollet, C.

AU - Smith, M. B.

AU - Stezowski, O.

AU - Waddington, J. C.

AU - Wilson, A. N.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - The N=86,87 isotopes of dysprosium and holmium have been investigated using the Eurogam II γ-ray spectrometer. A new collective rotational band has been observed in 153Ho and the previously observed vi13/2 band in 153Dy has been extended to much higher spin. Comparing these bands and similar bands in 152Dy with the collective bands in the N=90 isotopes of Dy, Ho, and Er suggests that the first h11/2 proton crossing is not observed at N=86,87. This observation has led to the reinterpretation of four of the previously observed bands in 152Dy. It is proposed that the low deformation collective bands in 152,153Dy and 153Ho are associated with a triaxial shape with large positive gamma and that they have a similar origin to the recently observed triaxial superdeformed bands in 163-165Lu.

AB - The N=86,87 isotopes of dysprosium and holmium have been investigated using the Eurogam II γ-ray spectrometer. A new collective rotational band has been observed in 153Ho and the previously observed vi13/2 band in 153Dy has been extended to much higher spin. Comparing these bands and similar bands in 152Dy with the collective bands in the N=90 isotopes of Dy, Ho, and Er suggests that the first h11/2 proton crossing is not observed at N=86,87. This observation has led to the reinterpretation of four of the previously observed bands in 152Dy. It is proposed that the low deformation collective bands in 152,153Dy and 153Ho are associated with a triaxial shape with large positive gamma and that they have a similar origin to the recently observed triaxial superdeformed bands in 163-165Lu.

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DO - 10.1103/PhysRevC.66.044305

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EP - 443059

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 044305

ER -

Evidence for triaxial deformation near N=86: Collective bands in ^152,153Dy and ¹⁵³Ho

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