广义Brink-Axel假说在\(A=138\)核质量区的严格检验

IF 0.9 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

Acta Physica Polonica B Pub Date : 2023-01-01 DOI:10.5506/aphyspolb.54.8-a1

B. V. Kheswa

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引用次数: 0

摘要

广义Brink-Axel (gBA)假设表明，原子核的γ射线强度函数(γ SF)仅取决于γ射线能量，而不取决于原子核衰变所处的初始和最终激发能级的性质。这一假设已在各种研究中得到验证，但仍存在争议。在A = 138核质量区，通过严格研究138la的γ SF对初始和最终激发能的依赖，验证了gBA假设。结果表明，γ SF的形状和绝对值与初始激发能和最终激发能无关。因此，本工作的结果支持广义Brink-Axel假设。

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The Rigorous Test of the Generalized Brink–Axel Hypothesis in the \(A=138\) Nuclear Mass Region

The generalized Brink–Axel (gBA) hypothesis suggests that the γ -ray strength function ( γ SF) of a nucleus only depends on the γ -ray energy, and not on the properties of the initial and final excitation energy levels between which the nucleus decays. This hypothesis has been tested in various studies and it is still controversial. In this study, the gBA hypothesis was tested in the A = 138 nuclear mass region by rigorously investigating the dependence of the γ SF of 138 La on both initial and final excitation energies. The results showed that the shape and absolute value of the γ SF are independent of the initial and final excitation energy. Therefore, the results of this work are in support of the generalized Brink–Axel hypothesis.

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来源期刊

Acta Physica Polonica B 物理-物理：综合

CiteScore

1.70

自引率

20.00%

发文量

审稿时长

3-8 weeks

期刊介绍： Acta Physica Polonica B covers the following areas of physics: -General and Mathematical Physics- Particle Physics and Field Theory- Nuclear Physics- Theory of Relativity and Astrophysics- Statistical Physics