24Mg(p,γ)25Al共振反应填充25Al的Ex = 2485.3 keV寿命测量

IF 1.7 4区 物理与天体物理 Q2 PHYSICS, NUCLEAR
Arkabrata Gupta , Sathi Sharma , Sangeeta Das , Anik Adhikari , Anubhab Mondal , Madhusree Roy Chowdhury , Chandan D Bagdia , Lokesh Tribedi , Vandana Nanal , Abhijit Bisoi , M. Saha Sarkar , S. Sarkar
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引用次数: 0

摘要

本文给出了在E=plab223 keV下24Mg(p,γ)25Al共振反应的实验研究结果。质子束能量从220到265千伏特不等。采用镀有厚钽衬底的蒸发镁靶。我们使用多普勒频移衰减(DSA)方法重新测量了E=x2485.3 keV水平25Al的平均寿命τ=6.04−2.65+3.03 fs。利用Wildenthal (w)、Chung-Wildenthal (cw)和predom -Wildenthal (pw)为sd壳层开发的三种最成功的经验有效相互作用,在核壳模型框架内计算25Al中的能谱、光谱因子、β衰变性质、跃迁概率和共振态寿命。理论结果与实验数据吻合较好。然而,对每一组进行了详细的研究,以确定该核最优选的相互作用。使用两个相互作用(w, cw)计算的寿命与本工作中测量的共振态实验寿命的中心值吻合得更好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lifetime measurement of the Ex = 2485.3 keV level of 25Al populated through 24Mg(p,γ)25Al resonance reaction

Results of our experimental study of the 24Mg(p,γ)25Al resonance reaction at E=plab223 keV are presented. The proton beam energy is varied from 220 to 265 keV. An evaporated Mg target with thick Ta backing is used. We remeasure a mean lifetime of τ=6.042.65+3.03 fs for the E=x2485.3 keV level of 25Al, using Doppler shift attenuation (DSA) method. Three most successfully used empirical effective interactions developed for the sd shell by Wildenthal (w), Chung-Wildenthal (cw) and Preedom-Wildenthal (pw), are utilized to calculate energy spectra, spectroscopic factors, beta decay properties, transition probabilities and the lifetime of the resonance state in 25Al within the framework of nuclear shell model. The theoretical results agree reasonably well with the experimental data. However, a detailed study for each set to identify the most preferred interaction for this nucleus is performed. Calculated lifetimes using two of the interactions (w, cw) agree better with the central value of the experimental lifetime of the resonance state measured in the present work.

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来源期刊
Nuclear Physics A
Nuclear Physics A 物理-物理:核物理
CiteScore
3.60
自引率
7.10%
发文量
113
审稿时长
61 days
期刊介绍: Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.
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