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arXiv 1810.09412nucl-th
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亚主导手征3 N力的密度相关NN相互作用:短程项和相对论修正

Density-dependent NN-interaction from subleading chiral 3N-forces: short-range terms and relativistic corrections

N. Kaiser, V. Niessner

摘要:

从手征三核子力的次主导贡献(短程项和相对论修正,发表在Phys.Rev.C84,054001(2011))出发,我们推导了同位旋对称核物质中密度依赖的两核子相互作用$V_\text{med}$。与同位旋算符($1$和$ \vecτ_1\!\cdot\!\vecτ_2$)和五种独立自旋结构相关的动量势和$k_f$势用回路函数表示,回路函数要么以封闭的解析形式给出,要么最多只需要一次数值积分.我们对$V_\text{med}$的研究结果对于将次级手征3N力应用到核多体计算中是非常有帮助的。

英文摘要:

We derive from the subleading contributions to the chiral three-nucleon force (short-range terms and relativistic corrections, published in Phys. Rev. C84, 054001 (2011)) a density-dependent two-nucleon interaction $V_\text{med}$ in isospin-symmetric nuclear matter. The momentum and $k_f$-dependent potentials associated with the isospin operators ($1$ and $ \vecτ_1\!\cdot\!\vecτ_2$) and five independent spin-structures are expressed in terms of loop functions, which are either given in closed analytical form or require at most one numerical integration. Our results for $V_\text{med}$ are most helpful to implement subleading chiral 3N-forces into nuclear many-body calculations.

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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