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arXiv 1808.02232nucl-th
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用反对称准集团模型研究~ 4 He和~ 8Be的短程关联和张量关联

Short-range and tensor correlations in 4He and 8Be studied with antisymmetrized quasi cluster model

N. Itagaki, H. Matsuno, Y. Kanada-En'yo

摘要:

我们应用张量版本的反对称准集团模型(AQCM-T)的4 He和8Be,而专注于在α集团的NN相关性。我们采用神经网络的相互作用,包括现实的,除了张量部分的中心部分包含一个排斥的核心。在4 He中,已知3D通道中的pn对在张量相关中起决定性作用,并且框架不仅能够处理该通道,而且能够处理1 S和3S通道中的NN相关。在8Be中,当两个α团簇靠近时,由于泡利阻塞效应,3D对被抑制,这通过3S-3D耦合引起3S分量的减少。这种效应导致中心偶相互作用在中程区域的吸引作用减弱。

英文摘要:

We apply tensor version of antisymmetrized quasi cluster model (AQCM-T) to 4He and 8Be while focusing on the NN correlations in alpha clusters. We adopt the NN interactions including realistic ones containing a repulsive core for the central part in addition to the tensor part. In 4He, the pn pair in the 3D channel has been known to play a decisive role in the tensor correlation and the framework is capable of treating not only this channel but also the NN correlations in the 1S and 3S channels. In 8Be, when two alpha clusters approach, the 3D pair is suppressed because of the Pauli blocking effect, which induces the decrease of the 3S component through the 3S-3D coupling. This effect results in the reduction of the attractive effect of the central-even interaction in the middle-range region.

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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