Return of collective rotation in Er-157 and Er-158 at ultrahigh spin

E. S. Paul; P. J. Twin; A. O. Evans; A. Pipidis; M. A. Riley; J. Simpson; D. E. Appelbe; D. B. Campbell; P. T. W. Choy; R. M. Clark; M. Cromaz; P. Fallon; A. Gorgen; D. T. Joss; I. Y. Lee; A. O. Macchiavelli; P. J. Nolan; D. Ward; Ingemar Ragnarsson

doi:10.1103/PhysRevLett.98.012501

Return of collective rotation in Er-157 and Er-158 at ultrahigh spin

E. S. Paul, P. J. Twin, A. O. Evans, A. Pipidis, M. A. Riley, J. Simpson, D. E. Appelbe, D. B. Campbell, P. T. W. Choy, R. M. Clark, M. Cromaz, P. Fallon, A. Gorgen, D. T. Joss, I. Y. Lee, A. O. Macchiavelli, P. J. Nolan, D. Ward, Ingemar Ragnarsson

Mathematical Physics

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

Abstract

A new frontier of discrete-line gamma-ray spectroscopy at ultrahigh spin has been opened in the rare-earth nuclei Er-157,Er-158. Four rotational structures, displaying high moments of inertia, have been identified, which extend up to spin similar to 65h and bypass the band-terminating states in these nuclei which occur at similar to 45h. Cranked Nilsson-Strutinsky calculations suggest that these structures arise from well-deformed triaxial configurations that lie in a valley of favored shell energy which also includes the triaxial strongly deformed bands in Lu161-167.

Original language	English
Pages (from-to)	012501:1-4
Journal	Physical Review Letters
Volume	98
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.98.012501
Publication status	Published - 2007

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

Subject classification (UKÄ)

Physical Sciences

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10.1103/PhysRevLett.98.012501

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Paul, E. S., Twin, P. J., Evans, A. O., Pipidis, A., Riley, M. A., Simpson, J., Appelbe, D. E., Campbell, D. B., Choy, P. T. W., Clark, R. M., Cromaz, M., Fallon, P., Gorgen, A., Joss, D. T., Lee, I. Y., Macchiavelli, A. O., Nolan, P. J., Ward, D., & Ragnarsson, I. (2007). Return of collective rotation in Er-157 and Er-158 at ultrahigh spin. Physical Review Letters, 98(1), 012501:1-4. https://doi.org/10.1103/PhysRevLett.98.012501

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title = "Return of collective rotation in Er-157 and Er-158 at ultrahigh spin",

abstract = "A new frontier of discrete-line gamma-ray spectroscopy at ultrahigh spin has been opened in the rare-earth nuclei Er-157,Er-158. Four rotational structures, displaying high moments of inertia, have been identified, which extend up to spin similar to 65h and bypass the band-terminating states in these nuclei which occur at similar to 45h. Cranked Nilsson-Strutinsky calculations suggest that these structures arise from well-deformed triaxial configurations that lie in a valley of favored shell energy which also includes the triaxial strongly deformed bands in Lu161-167.",

author = "Paul, {E. S.} and Twin, {P. J.} and Evans, {A. O.} and A. Pipidis and Riley, {M. A.} and J. Simpson and Appelbe, {D. E.} and Campbell, {D. B.} and Choy, {P. T. W.} and Clark, {R. M.} and M. Cromaz and P. Fallon and A. Gorgen and Joss, {D. T.} and Lee, {I. Y.} and Macchiavelli, {A. O.} and Nolan, {P. J.} and D. Ward and Ingemar Ragnarsson",

note = "The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)",

year = "2007",

doi = "10.1103/PhysRevLett.98.012501",

language = "English",

volume = "98",

pages = "012501:1--4",

journal = "Physical Review Letters",

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Paul, ES, Twin, PJ, Evans, AO, Pipidis, A, Riley, MA, Simpson, J, Appelbe, DE, Campbell, DB, Choy, PTW, Clark, RM, Cromaz, M, Fallon, P, Gorgen, A, Joss, DT, Lee, IY, Macchiavelli, AO, Nolan, PJ, Ward, D & Ragnarsson, I 2007, 'Return of collective rotation in Er-157 and Er-158 at ultrahigh spin', Physical Review Letters, vol. 98, no. 1, pp. 012501:1-4. https://doi.org/10.1103/PhysRevLett.98.012501

TY - JOUR

T1 - Return of collective rotation in Er-157 and Er-158 at ultrahigh spin

AU - Paul, E. S.

AU - Twin, P. J.

AU - Evans, A. O.

AU - Pipidis, A.

AU - Riley, M. A.

AU - Simpson, J.

AU - Appelbe, D. E.

AU - Campbell, D. B.

AU - Choy, P. T. W.

AU - Clark, R. M.

AU - Cromaz, M.

AU - Fallon, P.

AU - Gorgen, A.

AU - Joss, D. T.

AU - Lee, I. Y.

AU - Macchiavelli, A. O.

AU - Nolan, P. J.

AU - Ward, D.

AU - Ragnarsson, Ingemar

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

PY - 2007

Y1 - 2007

N2 - A new frontier of discrete-line gamma-ray spectroscopy at ultrahigh spin has been opened in the rare-earth nuclei Er-157,Er-158. Four rotational structures, displaying high moments of inertia, have been identified, which extend up to spin similar to 65h and bypass the band-terminating states in these nuclei which occur at similar to 45h. Cranked Nilsson-Strutinsky calculations suggest that these structures arise from well-deformed triaxial configurations that lie in a valley of favored shell energy which also includes the triaxial strongly deformed bands in Lu161-167.

AB - A new frontier of discrete-line gamma-ray spectroscopy at ultrahigh spin has been opened in the rare-earth nuclei Er-157,Er-158. Four rotational structures, displaying high moments of inertia, have been identified, which extend up to spin similar to 65h and bypass the band-terminating states in these nuclei which occur at similar to 45h. Cranked Nilsson-Strutinsky calculations suggest that these structures arise from well-deformed triaxial configurations that lie in a valley of favored shell energy which also includes the triaxial strongly deformed bands in Lu161-167.

U2 - 10.1103/PhysRevLett.98.012501

DO - 10.1103/PhysRevLett.98.012501

M3 - Article

SN - 1079-7114

VL - 98

SP - 012501:1-4

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

ER -

Return of collective rotation in Er-157 and Er-158 at ultrahigh spin

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