Shape coexistence and disappearance of pairing correlations in 82Sr

C. Baktash; G. Garcia-Bermudez; D. G. Sarantites; W. Nazarewicz; V. Abenante; J. R. Beene; H. C. Griffin; M. L. Halbert; D. C. Hensley; N. R. Johnson; I. Y. Lee; F. K. McGowan; M. A. Riley; D. W. Stracener; T. M. Semkow; A. Virtanen

doi:10.1016/0370-2693(91)90232-F

Shape coexistence and disappearance of pairing correlations in ⁸²Sr

C. Baktash
, G. Garcia-Bermudez
, D. G. Sarantites
, W. Nazarewicz
, V. Abenante
, J. R. Beene
, H. C. Griffin
, M. L. Halbert
, D. C. Hensley
, N. R. Johnson
, I. Y. Lee
, F. K. McGowan
, M. A. Riley
, D. W. Stracener
, T. M. Semkow
, A. Virtanen

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

34 Scopus citations

Abstract

Extensive high-spin band structures in ⁸²Sr have been established using proton-γ-γ coincidence techniques. On the basis of the Woods-Saxon cranking calculations with pairing, four of these bands are interpreted to have prolate, oblate, or triaxial shapes. Pairing correlations are predicted to be very weak at high spins in this nucleus, and calculations with no static pairing successfully reproduce the experimentally observed crossing frequencies and alignments despite the fact that none of the bands displays a rigid-rotor behavior. It is concluded that observation of rigid-rotor behavior is neither necessary nor sufficient for the disappearance of static pairing in nuclei.

Original language	English
Pages (from-to)	174-179
Number of pages	6
Journal	Physics Letters B
Volume	255
Issue number	2
DOIs	https://doi.org/10.1016/0370-2693(91)90232-F
State	Published - Feb 7 1991
Externally published	Yes

Funding

Oak Ridge National Laboratory is operated by Martin Marietta Energy systems,I nc. for the US Department of Energy under contract No. DE-ACOS-840R2 1400.T his work was supported in part by the US Departmento f Energy under grantN o. DE-FGOZ-88ER-40406, NSF-CONICET US-Latin American Cooperative Science Program, and the Polish ministry for National Education under grant No. CPBPO 1.09.

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Baktash, C., Garcia-Bermudez, G., Sarantites, D. G., Nazarewicz, W., Abenante, V., Beene, J. R., Griffin, H. C., Halbert, M. L., Hensley, D. C., Johnson, N. R., Lee, I. Y., McGowan, F. K., Riley, M. A., Stracener, D. W., Semkow, T. M., & Virtanen, A. (1991). Shape coexistence and disappearance of pairing correlations in ⁸²Sr. Physics Letters B, 255(2), 174-179. https://doi.org/10.1016/0370-2693(91)90232-F

@article{5b9be62a8f0e4b2896c5544a282dee10,

title = "Shape coexistence and disappearance of pairing correlations in 82Sr",

abstract = "Extensive high-spin band structures in 82Sr have been established using proton-γ-γ coincidence techniques. On the basis of the Woods-Saxon cranking calculations with pairing, four of these bands are interpreted to have prolate, oblate, or triaxial shapes. Pairing correlations are predicted to be very weak at high spins in this nucleus, and calculations with no static pairing successfully reproduce the experimentally observed crossing frequencies and alignments despite the fact that none of the bands displays a rigid-rotor behavior. It is concluded that observation of rigid-rotor behavior is neither necessary nor sufficient for the disappearance of static pairing in nuclei.",

author = "C. Baktash and G. Garcia-Bermudez and Sarantites, \{D. G.\} and W. Nazarewicz and V. Abenante and Beene, \{J. R.\} and Griffin, \{H. C.\} and Halbert, \{M. L.\} and Hensley, \{D. C.\} and Johnson, \{N. R.\} and Lee, \{I. Y.\} and McGowan, \{F. K.\} and Riley, \{M. A.\} and Stracener, \{D. W.\} and Semkow, \{T. M.\} and A. Virtanen",

year = "1991",

month = feb,

day = "7",

doi = "10.1016/0370-2693(91)90232-F",

language = "English",

volume = "255",

pages = "174--179",

journal = "Physics Letters B",

issn = "0370-2693",

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Baktash, C, Garcia-Bermudez, G, Sarantites, DG, Nazarewicz, W, Abenante, V, Beene, JR, Griffin, HC, Halbert, ML, Hensley, DC, Johnson, NR, Lee, IY, McGowan, FK, Riley, MA, Stracener, DW, Semkow, TM & Virtanen, A 1991, 'Shape coexistence and disappearance of pairing correlations in ⁸²Sr', Physics Letters B, vol. 255, no. 2, pp. 174-179. https://doi.org/10.1016/0370-2693(91)90232-F

TY - JOUR

T1 - Shape coexistence and disappearance of pairing correlations in 82Sr

AU - Baktash, C.

AU - Garcia-Bermudez, G.

AU - Sarantites, D. G.

AU - Nazarewicz, W.

AU - Abenante, V.

AU - Beene, J. R.

AU - Griffin, H. C.

AU - Halbert, M. L.

AU - Hensley, D. C.

AU - Johnson, N. R.

AU - Lee, I. Y.

AU - McGowan, F. K.

AU - Riley, M. A.

AU - Stracener, D. W.

AU - Semkow, T. M.

AU - Virtanen, A.

PY - 1991/2/7

Y1 - 1991/2/7

N2 - Extensive high-spin band structures in 82Sr have been established using proton-γ-γ coincidence techniques. On the basis of the Woods-Saxon cranking calculations with pairing, four of these bands are interpreted to have prolate, oblate, or triaxial shapes. Pairing correlations are predicted to be very weak at high spins in this nucleus, and calculations with no static pairing successfully reproduce the experimentally observed crossing frequencies and alignments despite the fact that none of the bands displays a rigid-rotor behavior. It is concluded that observation of rigid-rotor behavior is neither necessary nor sufficient for the disappearance of static pairing in nuclei.

AB - Extensive high-spin band structures in 82Sr have been established using proton-γ-γ coincidence techniques. On the basis of the Woods-Saxon cranking calculations with pairing, four of these bands are interpreted to have prolate, oblate, or triaxial shapes. Pairing correlations are predicted to be very weak at high spins in this nucleus, and calculations with no static pairing successfully reproduce the experimentally observed crossing frequencies and alignments despite the fact that none of the bands displays a rigid-rotor behavior. It is concluded that observation of rigid-rotor behavior is neither necessary nor sufficient for the disappearance of static pairing in nuclei.

UR - https://www.scopus.com/pages/publications/0000877709

U2 - 10.1016/0370-2693(91)90232-F

DO - 10.1016/0370-2693(91)90232-F

M3 - Article

AN - SCOPUS:0000877709

SN - 0370-2693

VL - 255

SP - 174

EP - 179

JO - Physics Letters B

JF - Physics Letters B

IS - 2

ER -

Shape coexistence and disappearance of pairing correlations in ⁸²Sr

Abstract

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