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Identification of high- K rotation in Ba130 : Testing the consistency of electromagnetic observables

Qiang, Y. H., Petrache, C. M., Guo, S., Walker, P.M., Mengoni, D., Chen, Q. B., Lv, B. F., Astier, A., Dupont, E., Liu, M. L. , Zhou, X. H., Wang, J. G., Bazzacco, D., Boso, A., Goasduff, A., Recchia, F., Testov, D., Galtarossa, F., Jaworski, G., Napoli, D. R., Riccetto, S., Siciliano, M., Valiente-Dobon, J. J., Andreoiu, C., Garcia, F. H., Ortner, K., Whitmore, K., Cederwall, B., Lawrie, E. A., Kuti, I., Sohler, D., Marchlewski, T., Srebrny, J., Tucholski, A., Dai, A. C. and Xu, F. R. (2019) Identification of high- K rotation in Ba130 : Testing the consistency of electromagnetic observables Physical Review C, 99 (1), 014307.

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The band built on the Kπ = 8−, T1/2 = 9.4 ms isomer of 130Ba has been identified, filling the gap in the systematics of the dipole bands built on the 8− isomers in the N = 74 isotones from 128Xe to 138Gd. The use of the GALILEO array in conjunction with its ancillaries EUCLIDES and Neutron Wall, helped to firmly place the newly identified transitions on top of the long-lived isomer. The extracted gK and gR gyromagnetic factors are in agreement with the 7/2+[404] ⊗ 9/2−[514] two-neutron Nilsson configuration. Particle-rotor model calculations give an understanding of the limited degree of K mixing. The experimental information on the Kπ = 8− isomer of 130Ba is now the most complete among the K isomers of the N = 74 isotones.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Qiang, Y. H.
Petrache, C. M.
Guo, S.
Mengoni, D.
Chen, Q. B.
Lv, B. F.
Astier, A.
Dupont, E.
Liu, M. L.
Zhou, X. H.
Wang, J. G.
Bazzacco, D.
Boso, A.
Goasduff, A.
Recchia, F.
Testov, D.
Galtarossa, F.
Jaworski, G.
Napoli, D. R.
Riccetto, S.
Siciliano, M.
Valiente-Dobon, J. J.
Andreoiu, C.
Garcia, F. H.
Ortner, K.
Whitmore, K.
Cederwall, B.
Lawrie, E. A.
Kuti, I.
Sohler, D.
Marchlewski, T.
Srebrny, J.
Tucholski, A.
Dai, A. C.
Xu, F. R.
Date : 8 January 2019
DOI : 10.1103/PhysRevC.99.014307
Copyright Disclaimer : ©2019 American Physical Society
Depositing User : Diane Maxfield
Date Deposited : 12 Aug 2019 12:02
Last Modified : 13 Aug 2019 08:26

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