论文标题

Nuclei的准确散装特性从$ a = 2 $到$Δ$ isobars的潜力

Accurate bulk properties of nuclei from $A = 2$ to $\infty$ from potentials with $Δ$ isobars

论文作者

Jiang, W. G., Ekström, A., Forssén, C., Hagen, G., Jansen, G. R., Papenbrock, T.

论文摘要

我们优化了来自手性有效场理论的$δ$ -Full核相互作用。接触电势的低能量常数受到两体散射相迁移的限制,以及$ a = 2 $至$ 4 $ nucleon系统和核物质的结合状态的属性。 Pion-Nucleon耦合取自Roy-Steiner分析。产生的相互作用产生了一系列核的准确结合能和半径,从$ a = 16 $到$ a = 132 $,并为核物质和现实对称能量提供了准确的状态方程。选定的激发态也与数据一致。

We optimize $Δ$-full nuclear interactions from chiral effective field theory. The low-energy constants of the contact potentials are constrained by two-body scattering phase shifts, and by properties of bound-state of $A=2$ to $4$ nucleon systems and nuclear matter. The pion-nucleon couplings are taken from a Roy-Steiner analysis. The resulting interactions yield accurate binding energies and radii for a range of nuclei from $A=16$ to $A=132$, and provide accurate equations of state for nuclear matter and realistic symmetry energies. Selected excited states are also in agreement with data.

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