Lifetime measurements in Ti-44

Arnswald K.; Reiter P.; Blazhev A.; Braunroth T.; Dewald A.; Droste M.; Fransen C.; Goldkuhle A.; Hetzenegger R.; Hirsch R.; Hoemann E.; Kaya L.; Lewandowski L.; Mueller-Gatermann C.; Petkov P.; Rosiak D.; Seidlitz M.; Siebeck B.; Vogt A.; Werner D.; Wolf K.; Zell K-O

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Lifetime measurements in Ti-44

机译：TI-44的寿命测量

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Lifetimes of excited nuclear states were determined in Ti-44 using the recoil distance Doppler-shift technique and the Doppler-shift attenuation method. Results from the K-pi = 3(-) band confirm isospin-symmetry breaking for the 3(1)(-) -> 2(1)(+) E1 transition. The lifetime of the 4(1)(-) state differs considerably from the previously known value. Good agreement is found for the 4(1)(+) and 6(1)(+) level lifetimes with respect to previous values. The experimental values are compared with large-scale shell-model calculations employing established interactions in the 0f1p shell, as well as a modern effective Hamiltonian including multiparticle multihole cross-shell configurations. Extended configuration spaces of this shell-model calculation allow for a detailed comparison with newly determined negative-parity states.

机译：使用反冲距离多普勒频移技术和多普勒频移衰减法测定了Ti-44中激发核态的寿命。K-pi=3（-）带的结果证实了3（1）（->2（1）（+）E1跃迁的同位旋对称破缺。4（1）（）态的寿命与之前已知的值相差很大。发现4（1）（+）和6（1）（+）能级寿命与之前的值有很好的一致性。将实验值与采用0f1p壳层中已建立的相互作用以及包括多粒子多孔交叉壳层结构的现代有效哈密顿量的大规模壳层模型计算进行了比较。此壳模型计算的扩展配置空间允许与新确定的负奇偶校验状态进行详细比较。

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《Physical review, C》 |2020年第5期|共9页
作者
Arnswald K.; Reiter P.; Blazhev A.; Braunroth T.; Dewald A.; Droste M.; Fransen C.; Goldkuhle A.; Hetzenegger R.; Hirsch R.; Hoemann E.; Kaya L.; Lewandowski L.; Mueller-Gatermann C.; Petkov P.; Rosiak D.; Seidlitz M.; Siebeck B.; Vogt A.; Werner D.; Wolf K.; Zell K-O;
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Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

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中图分类原子核物理学、高能物理学;
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Lifetime measurements in Ti-44

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