Chiral vibrations and collective bands in Mo 104,106

B. M. Musangu; E. H. Wang; J. H. Hamilton; S. Jehangir; G. H. Bhat; J. A. Sheikh; S. Frauendorf; C. J. Zachary; J. M. Eldridge; A. V. Ramayya; A. C. Dai; F. R. Xu; J. O. Rasmussen; Y. X. Luo; G. M. Ter-Akopian; Yu Ts Oganessian; S. J. Zhu

doi:10.1103/PhysRevC.104.064318

Chiral vibrations and collective bands in Mo 104,106

B. M. Musangu, E. H. Wang, J. H. Hamilton, S. Jehangir, G. H. Bhat, J. A. Sheikh, S. Frauendorf, C. J. Zachary, J. M. Eldridge, A. V. Ramayya, A. C. Dai, F. R. Xu, J. O. Rasmussen, Y. X. Luo, G. M. Ter-Akopian, Yu Ts Oganessian, S. J. Zhu

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13 Scopus citations

Abstract

High spin states of the neutron-rich Mo104 nucleus have been reinvestigated by analyzing the γ rays in the spontaneous fission of Cf252 with Gammasphere. Both γ-γ-γ and γ-γ-γ-γ coincidence data were analyzed. A new ΔI=1 band has been discovered with a tentative 5- band head, and is proposed to form a class of chiral vibrational doublets with another 4- band previously found. Angular correlation measurements have been performed to determine the spins and parities. A new 3- level has been added to one of the chiral doublet bands in Mo106. The origin of the chiral doublet bands in Mo104,106 is interpreted as a neutron h11/2 particle and mixed d5/2, g7/2 hole coupled to the short and long axis, respectively. Triaxial projected shell model calculations have been performed for the chiral doublet bands in Mo104,106. The results show reasonably good agreement with the experimental data.

Original language	English
Article number	064318
Journal	Physical Review C
Volume	104
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.104.064318
State	Published - Dec 2021
Externally published	Yes

Funding

The work at Vanderbilt University and Lawrence Berkeley National Laboratory is supported by the U.S. Department of Energy under Grant No. DE-FG05-88ER40407 and Contract No. DE-AC03-76SF00098. The work at Tsinghua University was supported by the National Natural Science Foundation of China under Grant No. 11175095. The work at JINR was supported by the Russian Foundation for Basic Research Grant No. 08-02-00089 and by the INTAS Grant No. 03-51-4496. S.F. acknowledges support by the U.S. Department of Energy under Grant No. DF-FG02-95ER40934.

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10.1103/PhysRevC.104.064318

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Musangu, B. M., Wang, E. H., Hamilton, J. H., Jehangir, S., Bhat, G. H., Sheikh, J. A., Frauendorf, S., Zachary, C. J., Eldridge, J. M., Ramayya, A. V., Dai, A. C., Xu, F. R., Rasmussen, J. O., Luo, Y. X., Ter-Akopian, G. M., Oganessian, Y. T., & Zhu, S. J. (2021). Chiral vibrations and collective bands in Mo 104,106. Physical Review C, 104(6), Article 064318. https://doi.org/10.1103/PhysRevC.104.064318

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title = "Chiral vibrations and collective bands in Mo 104,106",

abstract = "High spin states of the neutron-rich Mo104 nucleus have been reinvestigated by analyzing the γ rays in the spontaneous fission of Cf252 with Gammasphere. Both γ-γ-γ and γ-γ-γ-γ coincidence data were analyzed. A new ΔI=1 band has been discovered with a tentative 5- band head, and is proposed to form a class of chiral vibrational doublets with another 4- band previously found. Angular correlation measurements have been performed to determine the spins and parities. A new 3- level has been added to one of the chiral doublet bands in Mo106. The origin of the chiral doublet bands in Mo104,106 is interpreted as a neutron h11/2 particle and mixed d5/2, g7/2 hole coupled to the short and long axis, respectively. Triaxial projected shell model calculations have been performed for the chiral doublet bands in Mo104,106. The results show reasonably good agreement with the experimental data.",

author = "Musangu, \{B. M.\} and Wang, \{E. H.\} and Hamilton, \{J. H.\} and S. Jehangir and Bhat, \{G. H.\} and Sheikh, \{J. A.\} and S. Frauendorf and Zachary, \{C. J.\} and Eldridge, \{J. M.\} and Ramayya, \{A. V.\} and Dai, \{A. C.\} and Xu, \{F. R.\} and Rasmussen, \{J. O.\} and Luo, \{Y. X.\} and Ter-Akopian, \{G. M.\} and Oganessian, \{Yu Ts\} and Zhu, \{S. J.\}",

note = "Publisher Copyright: {\textcopyright} 2021 American Physical Society. ",

year = "2021",

month = dec,

doi = "10.1103/PhysRevC.104.064318",

language = "English",

volume = "104",

journal = "Physical Review C",

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AU - Musangu, B. M.

AU - Wang, E. H.

AU - Hamilton, J. H.

AU - Jehangir, S.

AU - Bhat, G. H.

AU - Sheikh, J. A.

AU - Frauendorf, S.

AU - Zachary, C. J.

AU - Eldridge, J. M.

AU - Ramayya, A. V.

AU - Dai, A. C.

AU - Xu, F. R.

AU - Rasmussen, J. O.

AU - Luo, Y. X.

AU - Ter-Akopian, G. M.

AU - Oganessian, Yu Ts

AU - Zhu, S. J.

PY - 2021/12

Y1 - 2021/12

N2 - High spin states of the neutron-rich Mo104 nucleus have been reinvestigated by analyzing the γ rays in the spontaneous fission of Cf252 with Gammasphere. Both γ-γ-γ and γ-γ-γ-γ coincidence data were analyzed. A new ΔI=1 band has been discovered with a tentative 5- band head, and is proposed to form a class of chiral vibrational doublets with another 4- band previously found. Angular correlation measurements have been performed to determine the spins and parities. A new 3- level has been added to one of the chiral doublet bands in Mo106. The origin of the chiral doublet bands in Mo104,106 is interpreted as a neutron h11/2 particle and mixed d5/2, g7/2 hole coupled to the short and long axis, respectively. Triaxial projected shell model calculations have been performed for the chiral doublet bands in Mo104,106. The results show reasonably good agreement with the experimental data.

AB - High spin states of the neutron-rich Mo104 nucleus have been reinvestigated by analyzing the γ rays in the spontaneous fission of Cf252 with Gammasphere. Both γ-γ-γ and γ-γ-γ-γ coincidence data were analyzed. A new ΔI=1 band has been discovered with a tentative 5- band head, and is proposed to form a class of chiral vibrational doublets with another 4- band previously found. Angular correlation measurements have been performed to determine the spins and parities. A new 3- level has been added to one of the chiral doublet bands in Mo106. The origin of the chiral doublet bands in Mo104,106 is interpreted as a neutron h11/2 particle and mixed d5/2, g7/2 hole coupled to the short and long axis, respectively. Triaxial projected shell model calculations have been performed for the chiral doublet bands in Mo104,106. The results show reasonably good agreement with the experimental data.

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DO - 10.1103/PhysRevC.104.064318

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SN - 2469-9985

VL - 104

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 064318

ER -

Chiral vibrations and collective bands in Mo 104,106

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