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arXiv 2201.00330nucl-ex
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最低T = 2,A = 32五重态的同位旋混合和三次等压多重态质量方程

Isospin Mixing and the Cubic Isobaric Multiplet Mass Equation in the Lowest T = 2, A = 32 Quintet

M. Kamil, S. Triambak, A. Magilligan, A. García, B. A. Brown, P. Adsley, V. Bildstein, C. Burbadge, A. Diaz Varela, T. Faestermann, P. E. Garrett, R. Hertenberg… 展开作者

M. Kamil, S. Triambak, A. Magilligan, A. García, B. A. Brown, P. Adsley, V. Bildstein, C. Burbadge, A. Diaz Varela, T. Faestermann, P. E. Garrett, R. Hertenberger, N. Y. Kheswa, K. G. Leach, R. Lindsay, D. J. Marín-Lámbarri, F. Ghazi Moradi, N. J. Mukwevho, R. Neveling, J. C. Nzobadila Ondze, P. Papka, L. Pellegri, V. Pesudo, B. M. Rebeiro, M. Scheck, F. D. Smit, H. -F. Wirth

摘要:

已知等压多重态质量方程(IMME)在第一个T = 2,A = 32的同位旋五重态中失效。在这项工作中,我们结合高分辨率的实验数据与国家的最先进的壳模型计算调查的同位旋混合作为一个可能的原因,这种违反。实验数据被用来验证新开发的壳模型哈密顿计算的同位旋混合矩阵元。我们的分析表明,与非模拟T = 1状态的同位旋混合有助于IMME击穿,使得异常立方项的要求不可避免的多重态。

英文摘要:

The isobaric multiplet mass equation (IMME) is known to break down in the first T = 2, A = 32 isospin quintet. In this work we combine high-resolution experimental data with state-of-the-art shell-model calculations to investigate isospin mixing as a possible cause for this violation. The experimental data are used to validate isospin-mixing matrix elements calculated with newly developed shell-model Hamiltonians. Our analysis shows that isospin mixing with nonanalog T = 1 states contributes to the IMME breakdown, making the requirement of an anomalous cubic term inevitable for the multiplet.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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