Abstract:
High spin states of
94Nb have been studied with the
82Se(
18O, p5n)
94Nb fusion evaporation reaction at beam energy of 82 and 88 MeV. The experiment was performed at the HI-13 tandem accelerator of the China Institute of Atomic Energy. The previously reported level schemes of
94Nb have been extended and modified up to an excitation energy of 10.6 MeV and a spin and parity of 24
(−) with 13 new γ-transitions. Based on DCO ratios and linear polarization measurements, spin-parity have been assiged up to the highest level observed. The level structures in
94Nb have been interpreted in terms of the shell model calculations performed in the configuration space
π(1f
5/2, 2p
3/2, 2p
1/2, 1g
9/2 ) for the protons and
ν(2
p1/2, 1
g9/2, 1
g7/2, 2
d5/2 ) for the neutrons, and the neutron proton excitation mechanism of
94Nb was discussed.
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