Residual interactions and tilted rotation in odd-odd [Formula Presented]

W. Reviol; L. L. Riedinger; X. Z. Wang; J. Y. Zhang; H. J. Jensen; G. B. Hagemann; R. A. Bark; P. O. Tjøm; S. Leoni; T. Lönnroth; H. Schnack-Petersen; T. Shizuma; J. Wrzesinski; P. B. Semmes

doi:10.1103/PhysRevC.59.1351

Residual interactions and tilted rotation in odd-odd [Formula Presented]

W. Reviol, L. L. Riedinger, X. Z. Wang, J. Y. Zhang, H. J. Jensen, G. B. Hagemann, R. A. Bark^*, P. O. Tjøm, S. Leoni, T. Lönnroth, H. Schnack-Petersen, T. Shizuma, J. Wrzesinski, P. B. Semmes

^*Corresponding author for this work

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

33 Citations (Scopus)

Abstract

High-spin spectroscopy on odd-odd [Formula Presented] has produced new illustrations of departures from the predictions of principal-axis cranking. Among the nine strongly coupled rotational bands observed, four are assigned to the parallel and antiparallel couplings of two configurations [Formula Presented] and [Formula Presented] This represents the first time that the high-spin properties of both couplings can be explored. We find that the measured [Formula Presented] values in the [Formula Presented] coupling of [Formula Presented] are 50% larger than those in the [Formula Presented] (↑↑) coupling, and represent the largest seen in this nucleus. Tilted-axis cranking calculations successfully explain the [Formula Presented] ratios in these two bands, while the particle-rotor calculations did not reproduce the full low-K enhancement. No inversion in the signatures of the [Formula Presented] band is observed, but there is a small inversion in the [Formula Presented] coupling up to [Formula Presented] and a large inversion in the [Formula Presented] band up to [Formula Presented] Remarkably, particle-rotor calculations with a [Formula Presented] interaction included are able to reproduce these inversions. A stronger [Formula Presented] interaction is needed to explain an inversion in the [Formula Presented] band.

Original language	English
Pages (from-to)	1351-1378
Number of pages	28
Journal	Physical Review C - Nuclear Physics
Volume	59
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.59.1351
Publication status	Published - 1999
Externally published	Yes

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Reviol, W., Riedinger, L. L., Wang, X. Z., Zhang, J. Y., Jensen, H. J., Hagemann, G. B., Bark, R. A., Tjøm, P. O., Leoni, S., Lönnroth, T., Schnack-Petersen, H., Shizuma, T., Wrzesinski, J., & Semmes, P. B. (1999). Residual interactions and tilted rotation in odd-odd [Formula Presented]. Physical Review C - Nuclear Physics, 59(3), 1351-1378. https://doi.org/10.1103/PhysRevC.59.1351

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title = "Residual interactions and tilted rotation in odd-odd [Formula Presented]",

abstract = "High-spin spectroscopy on odd-odd [Formula Presented] has produced new illustrations of departures from the predictions of principal-axis cranking. Among the nine strongly coupled rotational bands observed, four are assigned to the parallel and antiparallel couplings of two configurations [Formula Presented] and [Formula Presented] This represents the first time that the high-spin properties of both couplings can be explored. We find that the measured [Formula Presented] values in the [Formula Presented] coupling of [Formula Presented] are 50% larger than those in the [Formula Presented] (↑↑) coupling, and represent the largest seen in this nucleus. Tilted-axis cranking calculations successfully explain the [Formula Presented] ratios in these two bands, while the particle-rotor calculations did not reproduce the full low-K enhancement. No inversion in the signatures of the [Formula Presented] band is observed, but there is a small inversion in the [Formula Presented] coupling up to [Formula Presented] and a large inversion in the [Formula Presented] band up to [Formula Presented] Remarkably, particle-rotor calculations with a [Formula Presented] interaction included are able to reproduce these inversions. A stronger [Formula Presented] interaction is needed to explain an inversion in the [Formula Presented] band.",

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AU - Jensen, H. J.

AU - Hagemann, G. B.

AU - Bark, R. A.

AU - Tjøm, P. O.

AU - Leoni, S.

AU - Lönnroth, T.

AU - Schnack-Petersen, H.

AU - Shizuma, T.

AU - Wrzesinski, J.

AU - Semmes, P. B.

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AB - High-spin spectroscopy on odd-odd [Formula Presented] has produced new illustrations of departures from the predictions of principal-axis cranking. Among the nine strongly coupled rotational bands observed, four are assigned to the parallel and antiparallel couplings of two configurations [Formula Presented] and [Formula Presented] This represents the first time that the high-spin properties of both couplings can be explored. We find that the measured [Formula Presented] values in the [Formula Presented] coupling of [Formula Presented] are 50% larger than those in the [Formula Presented] (↑↑) coupling, and represent the largest seen in this nucleus. Tilted-axis cranking calculations successfully explain the [Formula Presented] ratios in these two bands, while the particle-rotor calculations did not reproduce the full low-K enhancement. No inversion in the signatures of the [Formula Presented] band is observed, but there is a small inversion in the [Formula Presented] coupling up to [Formula Presented] and a large inversion in the [Formula Presented] band up to [Formula Presented] Remarkably, particle-rotor calculations with a [Formula Presented] interaction included are able to reproduce these inversions. A stronger [Formula Presented] interaction is needed to explain an inversion in the [Formula Presented] band.

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Residual interactions and tilted rotation in odd-odd [Formula Presented]

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