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arXiv 2112.03382nucl-exnucl-th
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镍同位素$^{58-68,70}$ Ni的核电荷半径

Nuclear Charge Radii of the Nickel Isotopes $^{58-68,70}$Ni

S. Malbrunot-Ettenauer, S. Kaufmann, S. Bacca, C. Barbieri, J. Billowes, M. L. Bissell, K. Blaum, B. Cheal, T. Duguet, R. F. Garcia Ruiz, W. Gins, C. Gorges, G.… 展开作者

S. Malbrunot-Ettenauer, S. Kaufmann, S. Bacca, C. Barbieri, J. Billowes, M. L. Bissell, K. Blaum, B. Cheal, T. Duguet, R. F. Garcia Ruiz, W. Gins, C. Gorges, G. Hagen, H. Heylen, J. D. Holt, G. R. Jansen, A. Kanellakopoulos, M. Kortelainen, T. Miyagi, P. Navrátil, W. Nazarewicz, R. Neugart, G. Neyens, W. Nörtershäuser, S. J. Novario, T. Papenbrock, T. Ratajczyk, P. -G. Reinhard, L. V. Rodríguez, R. Sánchez, S. Sailer, A. Schwenk, J. Simonis, V. Somà, S. R. Stroberg, L. Wehner, C. Wraith, L. Xie, Z. Y. Xu, X. F. Yang, D. T. Yordanov

摘要:

使用时间分辨光子计数系统对镍同位素$^{58-68,70}$ Ni进行共线激光光谱学。从测量的同位素位移,核电荷半径$R_c$提取和理论结果进行比较。三种从头算方法都采用手性相互作用NNLO $_{\rm sat}$等,这使得它们的准确性进行评估。我们发现协议与实验的微分半径$δ\left\langle r_\mathrm{c}^2 \right\rangle$为所有采用从头计算方法和相互作用,而绝对半径与数据一致,只有NNLO $_{\rm sat}$。在核密度泛函理论中,Skyrme泛函SV-min比Fayans泛函Fy($Δr$,HFB)更接近实验。

英文摘要:

Collinear laser spectroscopy is performed on the nickel isotopes $^{58-68,70}$Ni, using a time-resolved photon counting system. From the measured isotope shifts, nuclear charge radii $R_c$ are extracted and compared to theoretical results. Three ab initio approaches all employ, among others, the chiral interaction NNLO$_{\rm sat}$, which allows an assessment of their accuracy. We find agreement with experiment in differential radii $δ\left\langle r_\mathrm{c}^2 \right\rangle$ for all employed ab initio methods and interactions, while the absolute radii are consistent with data only for NNLO$_{\rm sat}$. Within nuclear density functional theory, the Skyrme functional SV-min matches experiment more closely than the Fayans functional Fy($Δr$,HFB).

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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