High-spin level structures of the near-spherical nuclei 91,92Zr

Z. G. Wang, M. L. Liu, Y. H. Zhang, X. H. Zhou, S. Guo, J. G. Wang, X. G. Lei, Y. Zheng, Y. D. Fang, Y. H. Qiang, N. T. Zhang, B. Ding, G. S. Li, F. Ma, X. L. Yan, S. C. Wang, B. S. Gao, F. Fang, B. T. Hu, X. G. Wu, C. Y. He, and Y. Zheng
Phys. Rev. C 89, 044308 – Published 7 April 2014

Abstract

High-spin level structures of the near-spherical nuclei 91,92Zr have been reinvestigated via the 82Se(13C, xn) (x=4,3) reactions at a beam energy of 44 MeV. By the use of in-beam spectroscopic methods, 13 new transitions belonging to 91Zr and 19 to 92Zr have been observed and the level schemes of 91,92Zr have been extended up to Ex 11 MeV excitation energy. The newly constructed level schemes are characterized by the 88Sr core breaking, and the proton p3/2p1/2 energy gap in 92Zr is obviously reduced compared with 91Zr when one more neutron goes into the (d5/2/g7/2) orbital.

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  • Received 3 March 2014

DOI:https://doi.org/10.1103/PhysRevC.89.044308

©2014 American Physical Society

Authors & Affiliations

Z. G. Wang1,2,3, M. L. Liu1,*, Y. H. Zhang1,†, X. H. Zhou1, S. Guo1, J. G. Wang1, X. G. Lei1, Y. Zheng1, Y. D. Fang1, Y. H. Qiang1, N. T. Zhang1, B. Ding1, G. S. Li1, F. Ma1, X. L. Yan1,2, S. C. Wang1, B. S. Gao1,2,3, F. Fang1, B. T. Hu3, X. G. Wu4, C. Y. He4, and Y. Zheng4

  • 1Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
  • 2University of Chinese Academy of Sciences, Beijing 000049, People's Republic of China
  • 3School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, People's Republic of China
  • 4China Institute of Atomic Energy, Beijing 102413, People's Republic of China

  • *liuml@impcas.ac.cn
  • yhzhang@impcas.ac.cn

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Vol. 89, Iss. 4 — April 2014

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