Lifetimes of superdeformed rotational states in 36Ar

C. E. Svensson; A. O. Macchiavelli; A. Juodagalvis; A. Poves; I. Ragnarsson; S. Åberg; D. E. Appelbe; R. A.E. Austin; G. C. Ball; M. P. Carpenter; E. Caurier; R. M. Clark; M. Cromaz; M. A. Deleplanque; R. M. Diamond; P. Fallon; R. V.F. Janssens; G. J. Lane; I. Y. Lee; F. Nowacki; D. G. Sarantites; F. S. Stephens; K. Vetter; D. Ward

doi:10.1103/PhysRevC.63.061301

Lifetimes of superdeformed rotational states in ³⁶Ar

C. E. Svensson^*, A. O. Macchiavelli, A. Juodagalvis, A. Poves, I. Ragnarsson, S. Åberg, D. E. Appelbe, R. A.E. Austin, G. C. Ball, M. P. Carpenter, E. Caurier, R. M. Clark, M. Cromaz, M. A. Deleplanque, R. M. Diamond, P. Fallon, R. V.F. Janssens, G. J. Lane, I. Y. Lee, F. NowackiD. G. Sarantites, F. S. Stephens, K. Vetter, D. Ward

^*Corresponding author for this work

Department of Nuclear Physics & Accelerator Applications

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

84 Citations (Scopus)

Abstract

Lifetimes have been measured in a superdeformed rotational band recently identified in the N = Z nucleus ³⁶Ar. A large low-spin quadrupole deformation (β₂=0.46±0.03) is confirmed and a decrease in the collectivity is observed as the high-spin band termination at I^π=16⁺ is approached. Detailed comparisons of the experimental B(E2) values with the results of cranked Nilsson-Strutinsky and large-scale (s_1/2d_3/2)-pf spherical shell model calculations indicate the need for a more refined treatment of transition matrix elements close to termination in the former, and the inclusion of the complete sd-pf model space in the latter description of this highly-collective rotational band.

Original language	English
Article number	061301
Pages (from-to)	613011-613015
Number of pages	5
Journal	Physical Review C - Nuclear Physics
Volume	63
Issue number	61301
DOIs	https://doi.org/10.1103/PhysRevC.63.061301
Publication status	Published - Jun 2001

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Svensson, C. E., Macchiavelli, A. O., Juodagalvis, A., Poves, A., Ragnarsson, I., Åberg, S., Appelbe, D. E., Austin, R. A. E., Ball, G. C., Carpenter, M. P., Caurier, E., Clark, R. M., Cromaz, M., Deleplanque, M. A., Diamond, R. M., Fallon, P., Janssens, R. V. F., Lane, G. J., Lee, I. Y., ... Ward, D. (2001). Lifetimes of superdeformed rotational states in ³⁶Ar. Physical Review C - Nuclear Physics, 63(61301), 613011-613015. Article 061301. https://doi.org/10.1103/PhysRevC.63.061301

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title = "Lifetimes of superdeformed rotational states in 36Ar",

abstract = "Lifetimes have been measured in a superdeformed rotational band recently identified in the N = Z nucleus 36Ar. A large low-spin quadrupole deformation (β2=0.46±0.03) is confirmed and a decrease in the collectivity is observed as the high-spin band termination at Iπ=16+ is approached. Detailed comparisons of the experimental B(E2) values with the results of cranked Nilsson-Strutinsky and large-scale (s1/2d3/2)-pf spherical shell model calculations indicate the need for a more refined treatment of transition matrix elements close to termination in the former, and the inclusion of the complete sd-pf model space in the latter description of this highly-collective rotational band.",

author = "Svensson, {C. E.} and Macchiavelli, {A. O.} and A. Juodagalvis and A. Poves and I. Ragnarsson and S. {\AA}berg and Appelbe, {D. E.} and Austin, {R. A.E.} and Ball, {G. C.} and Carpenter, {M. P.} and E. Caurier and Clark, {R. M.} and M. Cromaz and Deleplanque, {M. A.} and Diamond, {R. M.} and P. Fallon and Janssens, {R. V.F.} and Lane, {G. J.} and Lee, {I. Y.} and F. Nowacki and Sarantites, {D. G.} and Stephens, {F. S.} and K. Vetter and D. Ward",

year = "2001",

month = jun,

doi = "10.1103/PhysRevC.63.061301",

language = "English",

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pages = "613011--613015",

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publisher = "American Physical Society",

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Svensson, CE, Macchiavelli, AO, Juodagalvis, A, Poves, A, Ragnarsson, I, Åberg, S, Appelbe, DE, Austin, RAE, Ball, GC, Carpenter, MP, Caurier, E, Clark, RM, Cromaz, M, Deleplanque, MA, Diamond, RM, Fallon, P, Janssens, RVF, Lane, GJ, Lee, IY, Nowacki, F, Sarantites, DG, Stephens, FS, Vetter, K & Ward, D 2001, 'Lifetimes of superdeformed rotational states in ³⁶Ar', Physical Review C - Nuclear Physics, vol. 63, no. 61301, 061301, pp. 613011-613015. https://doi.org/10.1103/PhysRevC.63.061301

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AU - Svensson, C. E.

AU - Macchiavelli, A. O.

AU - Juodagalvis, A.

AU - Poves, A.

AU - Ragnarsson, I.

AU - Åberg, S.

AU - Appelbe, D. E.

AU - Austin, R. A.E.

AU - Ball, G. C.

AU - Carpenter, M. P.

AU - Caurier, E.

AU - Clark, R. M.

AU - Cromaz, M.

AU - Deleplanque, M. A.

AU - Diamond, R. M.

AU - Fallon, P.

AU - Janssens, R. V.F.

AU - Lane, G. J.

AU - Lee, I. Y.

AU - Nowacki, F.

AU - Sarantites, D. G.

AU - Stephens, F. S.

AU - Vetter, K.

AU - Ward, D.

PY - 2001/6

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N2 - Lifetimes have been measured in a superdeformed rotational band recently identified in the N = Z nucleus 36Ar. A large low-spin quadrupole deformation (β2=0.46±0.03) is confirmed and a decrease in the collectivity is observed as the high-spin band termination at Iπ=16+ is approached. Detailed comparisons of the experimental B(E2) values with the results of cranked Nilsson-Strutinsky and large-scale (s1/2d3/2)-pf spherical shell model calculations indicate the need for a more refined treatment of transition matrix elements close to termination in the former, and the inclusion of the complete sd-pf model space in the latter description of this highly-collective rotational band.

AB - Lifetimes have been measured in a superdeformed rotational band recently identified in the N = Z nucleus 36Ar. A large low-spin quadrupole deformation (β2=0.46±0.03) is confirmed and a decrease in the collectivity is observed as the high-spin band termination at Iπ=16+ is approached. Detailed comparisons of the experimental B(E2) values with the results of cranked Nilsson-Strutinsky and large-scale (s1/2d3/2)-pf spherical shell model calculations indicate the need for a more refined treatment of transition matrix elements close to termination in the former, and the inclusion of the complete sd-pf model space in the latter description of this highly-collective rotational band.

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EP - 613015

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 61301

M1 - 061301

ER -

Lifetimes of superdeformed rotational states in ³⁶Ar

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