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北美退伍军人节(Veterans Day),12 日无更新
arXiv 2004.05814nucl-th
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超球谐基下${}^6$ Li基态的计算

Calculation of the ${}^6$Li ground state within the hyperspherical harmonic basis

Alex Gnech, Michele Viviani, Laura Elisa Marcucci

摘要:

我们研究了六核子束缚态问题的超球谐近似解。在这项研究中,我们只考虑了两体核力。特别地,我们使用了由相似重整化群么正变换演化的手征核势。通过仔细分析不同HH类的收敛性,选择了一个限制基。最后,计算了${}^6$ Li基态的结合能等性质,并与其它方法得到的结果进行了比较。然后,我们提出了一个计算矩阵元素的直接暗物质搜索涉及${}^6$李。所得结果证明了HH法用于$A = 4$以外的计算的可行性。

英文摘要:

We have studied the solution of the six-nucleon bound state problem using the hyperspherical harmonic (HH) approach. For this study we have considered only two-body nuclear forces. In particular we have used a chiral nuclear potential evolved with the similarity renormalization group unitary transformation. A restricted basis has been selected by performing a careful analysis of the convergence of different HH classes. Finally, the binding energy and other properties of ${}^6$Li ground state are calculated and compared with the results obtained by other techniques. Then, we present a calculation of matrix elements relevant for direct dark matter search involving ${}^6$Li. The results obtained demonstrate the feasibility of using the HH method to perform calculation beyond $A = 4$.

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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