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Search for chiral bands in A ~ 110 neutron-rich nuclei

Zhu Sheng-Jiang1, J. H. Hamilton2, A. V. Ramayya2, J. K. Hwang2, J. O. Rasmussen3, Y. X. Luo2,3, K. Li2, Wang Jian-Guo1, Che Xing-Lai1, Ding Huai-Bo1, S. Frauendorf4, V. Dimitrov4, Xu Qiang1, Gu Long1 and Yang Yun-Yi1

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High spin states in A ~ 110 neutron-rich 106Mo, 110Ru and 112Ru nuclei have been reinvestigated by measuring the prompt γ-rays from the spontaneous fission of 252Cf. Two similar sets of bands are observed to high spins in each of three nuclei. Through analyzing of characters of the band structures, the chiral doublet bands are suggested in 106Mo, 110Ru and 112Ru.


PACS

21.10.Re Collective levels

23.20.Lv gamma transitions and level energies

25.85.Ca Spontaneous fission

27.60.+j 90(less-than-or-equal-to)A(less-than-or-equal-to)149

27.90.+b A ≥ 220

Subjects

Nuclear physics

Dates

Issue S1 (March 2009)

Received 3 September 2008



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