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arXiv 0901.3352nucl-th
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真实NN力作用下核物质中反常密度矩阵的空间相关性质

Spatial correlation properties of the anomalous density matrix in a slab of nuclear matter with realistic NN-forces

S. S. Pankratov, E. E. Saperstein, M. V. Zverev, M. Baldo, U. Lombardo

摘要:

计算了在Paris和Argonne v18力作用下核物质平板中反常密度矩阵$κ$的空间相关特性。与预测的有效Gogny力进行了详细的比较。它被发现,这两个现实的力量导致非常接近的结果,这是定性相似的Gogny力。同时,实际力的$κ$的大小基本上小于Gogny力的大小。相关特性与$κ$的大小无关,并且三种力的相关特性非常接近。特别是,他们都预测一个小的值的局部相关长度在表面的板坯和一个大的,里面。这些结果与Pillet等人最近对有限核在Gogny力作用下得到的结果一致。

英文摘要:

Spatial correlation characteristics of the anomalous density matrix $κ$ in a slab of nuclear matter with the Paris and Argonne v18 forces are calculated. A detailed comparison with predictions of the effective Gogny force is made. It is found that the two realistic forces lead to very close results which are qualitatively similar to those for the Gogny force. At the same time, the magnitude of $κ$ for realistic forces is essentially smaller than the one for the Gogny force. The correlation characteristics are practically independent of the magnitude of $κ$ and turn out to be quite close for the three kinds of the force. In particular, all of them predict a small value of the local correlation length at the surface of the slab and a big one, inside. These results are in agreement with those obtained recently by Pillet at al. for finite nuclei with the Gogny force.

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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