Core-excited states leading to the high-spin band structure in \(^{93}\)Nb nucleus

IF 2.6 3区 物理与天体物理 Q2 PHYSICS, NUCLEAR The European Physical Journal A Pub Date : 2024-11-25 DOI:10.1140/epja/s10050-024-01440-1
N. Goel, S. Nag, R. Palit, V. Malik, P. Dey, Md. S. R. Laskar, F. S. Babra, B. Das, A. Kundu, A. Sindhu, Abraham T. Vazhappilly, S. V. Jadhav, B. S. Naidu
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Abstract

We used the \(^{80}\)Se(\(^{18}\)O,p4n) \(^{93}\)Nb reaction with a beam energy of 99MeV and the INGA spectrometer to investigate high-spin states in odd A \(^{93}\)Nb. Our data analysis revealed the spectral features of the nuclear states of interest. The previously reported decay scheme was verified. Spin and parity were assigned to the existing levels. Fourteen new side-feeding transitions were placed. Doppler shift attenuation method was used to measure the lifetimes of multiple levels in the dipole and quadrupole bands. Comparisons between the experimental characteristics and cranked Nilsson-Strutinsky calculations for the observed quadrupole bands and dipole bands indicate that these bands have been formed on the triaxial deformed shape of \(^{93}\)Nb.

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导致(^{93}\)铌核中高自旋带结构的核激发态
我们利用束能为 99MeV 的 \(^{80}\)Se(\(^{18}\)O,p4n) \(^{93}\)Nb 反应和 INGA 光谱仪来研究奇 A \(^{93}\)Nb 中的高自旋态。我们的数据分析揭示了相关核态的光谱特征。之前报道的衰变方案得到了验证。自旋和奇偶性被分配给了现有的水平。我们还发现了 14 个新的侧馈跃迁。使用多普勒频移衰减法测量了偶极和四极波段中多个水平的寿命。观察到的四极带和偶极带的实验特征与曲柄尼尔森-斯特鲁汀斯基计算结果之间的比较表明,这些带是在(^{93}\)铌的三轴变形形状上形成的。
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来源期刊
The European Physical Journal A
The European Physical Journal A 物理-物理:核物理
CiteScore
5.00
自引率
18.50%
发文量
216
审稿时长
3-8 weeks
期刊介绍: Hadron Physics Hadron Structure Hadron Spectroscopy Hadronic and Electroweak Interactions of Hadrons Nonperturbative Approaches to QCD Phenomenological Approaches to Hadron Physics Nuclear and Quark Matter Heavy-Ion Collisions Phase Diagram of the Strong Interaction Hard Probes Quark-Gluon Plasma and Hadronic Matter Relativistic Transport and Hydrodynamics Compact Stars Nuclear Physics Nuclear Structure and Reactions Few-Body Systems Radioactive Beams Electroweak Interactions Nuclear Astrophysics Article Categories Letters (Open Access) Regular Articles New Tools and Techniques Reviews.
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