High-spin yrast states in the gamma-soft nuclei 135Pr and 134Ce

E. S. Paul; C. Fox; A. J. Boston; H. J. Chantler; C. J. Chiara; R. M. Clark; M. Cromaz; M. Descovich; P. Fallon; D. B. Fossan; A. A. Hecht; T. Koike; I. Y. Lee; A. O. Macchiavelli; P. J. Nolan; K. Starosta; R Wadsworth; I. Ragnarsson

doi:10.1103/PhysRevC.84.047302

High-spin yrast states in the gamma-soft nuclei ¹³⁵Pr and ¹³⁴Ce

E. S. Paul, C. Fox, A. J. Boston, H. J. Chantler, C. J. Chiara, R. M. Clark, M. Cromaz, M. Descovich, P. Fallon, D. B. Fossan, A. A. Hecht, T. Koike, I. Y. Lee, A. O. Macchiavelli, P. J. Nolan, K. Starosta, R Wadsworth, I. Ragnarsson

Physics

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

Abstract

High-spin states have been studied in Pr-135(59), populated through the Cd-116(Na-23,4n) reaction at 115 MeV, using the Gammasphere gamma-ray spectrometer. The negative-parity yrast band has been significantly extended to spin similar to 45 (h) over bar and excitation energy 21.5 MeV, showing evidence for several rotational alignments. The positive-parity yrast band of Ce-135(58), populated through the p4n channel of this reaction, was also populated to spin similar to 38 (h) over bar and excitation energy 18 MeV. Cranking calculations indicate that these nuclei are soft with respect to the triaxiality parameter gamma and that several competing nuclear shapes occur at high spin.

Original language	English
Article number	047302
Pages (from-to)	-
Number of pages	4
Journal	Physical Review C
Volume	84
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.84.047302
Publication status	Published - 17 Oct 2011

Keywords

COINCIDENCE DATA SETS
LIFETIME MEASUREMENTS
ENHANCED-DEFORMATION
ROTATIONAL BANDS
DATA SHEETS
PR NUCLEI
ISOTONES
MOMENTS
LA-131
PROTON

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10.1103/PhysRevC.84.047302

Cite this

Paul, E. S., Fox, C., Boston, A. J., Chantler, H. J., Chiara, C. J., Clark, R. M., Cromaz, M., Descovich, M., Fallon, P., Fossan, D. B., Hecht, A. A., Koike, T., Lee, I. Y., Macchiavelli, A. O., Nolan, P. J., Starosta, K., Wadsworth, R., & Ragnarsson, I. (2011). High-spin yrast states in the gamma-soft nuclei ¹³⁵Pr and ¹³⁴Ce. Physical Review C, 84(4), -. Article 047302. https://doi.org/10.1103/PhysRevC.84.047302

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title = "High-spin yrast states in the gamma-soft nuclei 135Pr and 134Ce",

abstract = "High-spin states have been studied in Pr-135(59), populated through the Cd-116(Na-23,4n) reaction at 115 MeV, using the Gammasphere gamma-ray spectrometer. The negative-parity yrast band has been significantly extended to spin similar to 45 (h) over bar and excitation energy 21.5 MeV, showing evidence for several rotational alignments. The positive-parity yrast band of Ce-135(58), populated through the p4n channel of this reaction, was also populated to spin similar to 38 (h) over bar and excitation energy 18 MeV. Cranking calculations indicate that these nuclei are soft with respect to the triaxiality parameter gamma and that several competing nuclear shapes occur at high spin.",

keywords = "COINCIDENCE DATA SETS, LIFETIME MEASUREMENTS, ENHANCED-DEFORMATION, ROTATIONAL BANDS, DATA SHEETS, PR NUCLEI, ISOTONES, MOMENTS, LA-131, PROTON",

author = "Paul, {E. S.} and C. Fox and Boston, {A. J.} and Chantler, {H. J.} and Chiara, {C. J.} and Clark, {R. M.} and M. Cromaz and M. Descovich and P. Fallon and Fossan, {D. B.} and Hecht, {A. A.} and T. Koike and Lee, {I. Y.} and Macchiavelli, {A. O.} and Nolan, {P. J.} and K. Starosta and R Wadsworth and I. Ragnarsson",

year = "2011",

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doi = "10.1103/PhysRevC.84.047302",

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Paul, ES, Fox, C, Boston, AJ, Chantler, HJ, Chiara, CJ, Clark, RM, Cromaz, M, Descovich, M, Fallon, P, Fossan, DB, Hecht, AA, Koike, T, Lee, IY, Macchiavelli, AO, Nolan, PJ, Starosta, K, Wadsworth, R & Ragnarsson, I 2011, 'High-spin yrast states in the gamma-soft nuclei ¹³⁵Pr and ¹³⁴Ce', Physical Review C, vol. 84, no. 4, 047302, pp. -. https://doi.org/10.1103/PhysRevC.84.047302

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T1 - High-spin yrast states in the gamma-soft nuclei 135Pr and 134Ce

AU - Paul, E. S.

AU - Fox, C.

AU - Boston, A. J.

AU - Chantler, H. J.

AU - Chiara, C. J.

AU - Clark, R. M.

AU - Cromaz, M.

AU - Descovich, M.

AU - Fallon, P.

AU - Fossan, D. B.

AU - Hecht, A. A.

AU - Koike, T.

AU - Lee, I. Y.

AU - Macchiavelli, A. O.

AU - Nolan, P. J.

AU - Starosta, K.

AU - Wadsworth, R

AU - Ragnarsson, I.

PY - 2011/10/17

Y1 - 2011/10/17

N2 - High-spin states have been studied in Pr-135(59), populated through the Cd-116(Na-23,4n) reaction at 115 MeV, using the Gammasphere gamma-ray spectrometer. The negative-parity yrast band has been significantly extended to spin similar to 45 (h) over bar and excitation energy 21.5 MeV, showing evidence for several rotational alignments. The positive-parity yrast band of Ce-135(58), populated through the p4n channel of this reaction, was also populated to spin similar to 38 (h) over bar and excitation energy 18 MeV. Cranking calculations indicate that these nuclei are soft with respect to the triaxiality parameter gamma and that several competing nuclear shapes occur at high spin.

AB - High-spin states have been studied in Pr-135(59), populated through the Cd-116(Na-23,4n) reaction at 115 MeV, using the Gammasphere gamma-ray spectrometer. The negative-parity yrast band has been significantly extended to spin similar to 45 (h) over bar and excitation energy 21.5 MeV, showing evidence for several rotational alignments. The positive-parity yrast band of Ce-135(58), populated through the p4n channel of this reaction, was also populated to spin similar to 38 (h) over bar and excitation energy 18 MeV. Cranking calculations indicate that these nuclei are soft with respect to the triaxiality parameter gamma and that several competing nuclear shapes occur at high spin.

KW - COINCIDENCE DATA SETS

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KW - PR NUCLEI

KW - ISOTONES

KW - MOMENTS

KW - LA-131

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