Lifetime measurements in $$^{138}$$ 138 Nd
Nuclear Science and Techniques(2021)
摘要
Lifetimes of the 2
$$_1^{+}$$
, 4
$$_1^{+}$$
, 7
$$_2^{-}$$
, 10
$$_2^{+}$$
, 12
$$_2^{+}$$
, and 14
$$_1^{+}$$
states in $$^{138}$$
Nd populated via the $$^{123}$$
Sb(
$$^{19}$$
F, 4n)
$$^{138}$$
Nd fusion–evaporation reaction were measured with the recoil distance Doppler shift technique in combination with the differential decay curve method. The $$B(E2; 2_{1}^{+} \rightarrow 0_{1}^{+})$$
value fit well with the systematic trend in the Nd isotope chain and Grodzins rule, which proved that $$^{138}$$
Nd is a transitional nucleus.
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关键词
Lifetime measurement, Recoil distance Doppler shift technique, Differential decay curve method
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