New band structures and an unpaired crossing in [Formula Presented]

H. Sun; J. Döring; G. D. Johns; R. A. Kaye; G. Z. Solomon; S. L. Tabor; M. Devlin; D. R. LaFosse; F. Lerma; D. G. Sarantites; C. Baktash; D. Rudolph; C. H. Yu; I. Y. Lee; A. O. Macchiavelli; I. Birriel; J. X. Saladin; D. F. Winchell; V. Q. Wood; I. Ragnarsson

doi:10.1103/PhysRevC.59.655

New band structures and an unpaired crossing in [Formula Presented]

H. Sun, J. Döring, G. D. Johns, R. A. Kaye, G. Z. Solomon, S. L. Tabor, M. Devlin, D. R. LaFosse, F. Lerma, D. G. Sarantites, C. Baktash, D. Rudolph, C. H. Yu, I. Y. Lee, A. O. Macchiavelli, I. Birriel, J. X. Saladin, D. F. Winchell, V. Q. Wood, I. Ragnarsson

Neutrino Research

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Abstract

High-spin states in [Formula Presented] were studied using the [Formula Presented] reaction at 70 MeV and the [Formula Presented] reaction at 130 MeV. Prompt [Formula Presented] coincidences were measured using the Pitt-FSU detector array and the GAMMASPHERE-MICROBALL array. Results from these experiments have led to 26 new excitation levels, some of which have been grouped into 3 new bands. Spins were assigned based on directional correlations of oriented nuclei. Two of the new negative-parity bands appear to form a signature-partner pair based on a two-quasineutron structure, in contrast to the previously known two-quasiproton negative-parity bands. A forking has been observed at the [Formula Presented] state in the yrast band, which calculations suggest may result from an unpaired crossing. The available evidence suggests oblate shapes in the yrast band coexist with prolate shapes in the negative-parity bands.

Original language	English
Pages (from-to)	655-664
Number of pages	10
Journal	Physical Review C - Nuclear Physics
Volume	59
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.59.655
State	Published - 1999

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Sun, H., Döring, J., Johns, G. D., Kaye, R. A., Solomon, G. Z., Tabor, S. L., Devlin, M., LaFosse, D. R., Lerma, F., Sarantites, D. G., Baktash, C., Rudolph, D., Yu, C. H., Lee, I. Y., Macchiavelli, A. O., Birriel, I., Saladin, J. X., Winchell, D. F., Wood, V. Q., & Ragnarsson, I. (1999). New band structures and an unpaired crossing in [Formula Presented]. Physical Review C - Nuclear Physics, 59(2), 655-664. https://doi.org/10.1103/PhysRevC.59.655

@article{fb67ec8ea5b24ee18c07fc0dd930cecc,

title = "New band structures and an unpaired crossing in [Formula Presented]",

abstract = "High-spin states in [Formula Presented] were studied using the [Formula Presented] reaction at 70 MeV and the [Formula Presented] reaction at 130 MeV. Prompt [Formula Presented] coincidences were measured using the Pitt-FSU detector array and the GAMMASPHERE-MICROBALL array. Results from these experiments have led to 26 new excitation levels, some of which have been grouped into 3 new bands. Spins were assigned based on directional correlations of oriented nuclei. Two of the new negative-parity bands appear to form a signature-partner pair based on a two-quasineutron structure, in contrast to the previously known two-quasiproton negative-parity bands. A forking has been observed at the [Formula Presented] state in the yrast band, which calculations suggest may result from an unpaired crossing. The available evidence suggests oblate shapes in the yrast band coexist with prolate shapes in the negative-parity bands.",

author = "H. Sun and J. D{\"o}ring and Johns, {G. D.} and Kaye, {R. A.} and Solomon, {G. Z.} and Tabor, {S. L.} and M. Devlin and LaFosse, {D. R.} and F. Lerma and Sarantites, {D. G.} and C. Baktash and D. Rudolph and Yu, {C. H.} and Lee, {I. Y.} and Macchiavelli, {A. O.} and I. Birriel and Saladin, {J. X.} and Winchell, {D. F.} and Wood, {V. Q.} and I. Ragnarsson",

year = "1999",

doi = "10.1103/PhysRevC.59.655",

language = "English",

volume = "59",

pages = "655--664",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "2",

}

Sun, H, Döring, J, Johns, GD, Kaye, RA, Solomon, GZ, Tabor, SL, Devlin, M, LaFosse, DR, Lerma, F, Sarantites, DG, Baktash, C, Rudolph, D, Yu, CH, Lee, IY, Macchiavelli, AO, Birriel, I, Saladin, JX, Winchell, DF, Wood, VQ & Ragnarsson, I 1999, 'New band structures and an unpaired crossing in [Formula Presented]', Physical Review C - Nuclear Physics, vol. 59, no. 2, pp. 655-664. https://doi.org/10.1103/PhysRevC.59.655

TY - JOUR

T1 - New band structures and an unpaired crossing in [Formula Presented]

AU - Sun, H.

AU - Döring, J.

AU - Johns, G. D.

AU - Kaye, R. A.

AU - Solomon, G. Z.

AU - Tabor, S. L.

AU - Devlin, M.

AU - LaFosse, D. R.

AU - Lerma, F.

AU - Sarantites, D. G.

AU - Baktash, C.

AU - Rudolph, D.

AU - Yu, C. H.

AU - Lee, I. Y.

AU - Macchiavelli, A. O.

AU - Birriel, I.

AU - Saladin, J. X.

AU - Winchell, D. F.

AU - Wood, V. Q.

AU - Ragnarsson, I.

PY - 1999

Y1 - 1999

N2 - High-spin states in [Formula Presented] were studied using the [Formula Presented] reaction at 70 MeV and the [Formula Presented] reaction at 130 MeV. Prompt [Formula Presented] coincidences were measured using the Pitt-FSU detector array and the GAMMASPHERE-MICROBALL array. Results from these experiments have led to 26 new excitation levels, some of which have been grouped into 3 new bands. Spins were assigned based on directional correlations of oriented nuclei. Two of the new negative-parity bands appear to form a signature-partner pair based on a two-quasineutron structure, in contrast to the previously known two-quasiproton negative-parity bands. A forking has been observed at the [Formula Presented] state in the yrast band, which calculations suggest may result from an unpaired crossing. The available evidence suggests oblate shapes in the yrast band coexist with prolate shapes in the negative-parity bands.

AB - High-spin states in [Formula Presented] were studied using the [Formula Presented] reaction at 70 MeV and the [Formula Presented] reaction at 130 MeV. Prompt [Formula Presented] coincidences were measured using the Pitt-FSU detector array and the GAMMASPHERE-MICROBALL array. Results from these experiments have led to 26 new excitation levels, some of which have been grouped into 3 new bands. Spins were assigned based on directional correlations of oriented nuclei. Two of the new negative-parity bands appear to form a signature-partner pair based on a two-quasineutron structure, in contrast to the previously known two-quasiproton negative-parity bands. A forking has been observed at the [Formula Presented] state in the yrast band, which calculations suggest may result from an unpaired crossing. The available evidence suggests oblate shapes in the yrast band coexist with prolate shapes in the negative-parity bands.

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SP - 655

EP - 664

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

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ER -

New band structures and an unpaired crossing in [Formula Presented]

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