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Charge radii of 11−16C, 13−17N and 15−18O determined from their charge-changing cross-sections and the mirror-difference charge radii
Physics Letters B ( IF 4.3 ) Pub Date : 2024-10-18 , DOI: 10.1016/j.physletb.2024.139082
J.W. Zhao, B.-H. Sun, I. Tanihata, J.Y. Xu, K.Y. Zhang, A. Prochazka, L.H. Zhu, S. Terashima, J. Meng, L.C. He, C.Y. Liu, G.S. Li, C.G. Lu, W.J. Lin, W.P. Lin, Z. Liu, P.P. Ren, Z.Y. Sun, F. Wang, J. Wang, M. Wang, S.T. Wang, X.L. Wei, X.D. Xu, J.C. Zhang, M.X. Zhang, X.H. Zhang

Charge-changing cross-sections (CCCSs) of 11−16C, 13−17N and 15−18O on a carbon target have been determined at energies around 300 MeV/nucleon. A nucleon separation energy-dependent correction factor has been introduced to the Glauber model calculation for extracting the nuclear charge radii from the experimental CCCSs. The charge radii of 11C, 13,16N and 15O thus were determined for the first time. With the new radii, we studied the experimental mirror-difference charge radii (ΔRchmirror) of 11B-11C, 13C-13N, 15N-15O, 17N-17Ne pairs for the first time. We find that the ΔRchmirror values of 13C-13N and 15N-15O pairs follow well the empirical relation to the isospin asymmetry predicted by the abinitio calculations, while ΔRchmirror of 11B-11C and 17N-17Ne pairs deviate from such relation by more than two standard deviations.

中文翻译:


11-16C、13-17N 和 15-18O 的电荷半径由它们的电荷变化截面和镜像差电荷半径确定



在能量约为 300 MeV/核子时,已经确定了碳靶上 11-16C、13-17N 和 15-18O 的电荷变化截面 (CCCS)。在格劳伯模型计算中引入了核子分离能量依赖性校正因子,用于从实验 CCCS 中提取核电荷半径。因此,首次确定了 11C、13,16N 和 15O 的电荷半径。使用新的半径,我们首次研究了 11B-11C、13C-13N、15N-15O、17N-17Ne 对的实验镜差电荷半径 (ΔRchmirror)。我们发现 13C-13N 和 15N-15O 对的 ΔRchmirror 值很好地遵循了与腹肌计算预测的等旋不对称性的经验关系,而 11B-11C 和 17N-17Ne 对的 ΔRchmirror 偏离了这种关系两个以上标准差。
更新日期:2024-10-18
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