论文标题

核武

Nuclear force with LapH smearing

论文作者

Sugiura, Takuya, Akahoshi, Yutaro, Aoyama, Tatsumi, Doi, Takahiro M., Doi, Takumi

论文摘要

核力量是通过组合HAL QCD方法和一种新型的源涂抹技术来确定的。新的涂抹是对晶格上自由拉普拉斯运算符的最低特征向量跨越的空间的投影,该材料通过利用强子级别的动量保管措施,以负担得起的成本有效地计算强子相关器。我们发现,这种新方法减少了由此产生的核力量的统计和系统错误。

The nuclear forces are determined by combining the HAL QCD method and a new type of source smearing technique. The new smearing is a projection to a space spanned by the lowest-lying eigenvectors of the free Laplacian operator on a lattice, which enables efficient calculation of hadron correlators at an affordable cost by utilizing the hadron-level momentum conservations. We find that this new approach reduces the statistical and systematic errors in the resultant nuclear forces.

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