基于约束势阱的从头算低能核散射计算
核理论
2020-09-30 v2 高能物理 - 格点
摘要
我们检验了一种近期改进的、可从被谐振势阱约束的靶-弹核团簇的离散能级提取低能核散射结果的方法。我们报告了利用两种不同从头算(ab initio)核结构方法计算的束缚能级分析所得的中子-- 与中子-- 弹性散射的令人鼓舞的结果。该 -- 结果也已通过与直接的从头算反应计算对照得到验证。该 -- 结果表明，只要其势阱中的能谱可由从头算方法算出，本方法对大范围系统均适用。一个关键要素是对从头算方法中不可避免的 Hilbert 空间截断所导致的计算能级误差的严格理解。
引用
@article{arxiv.2004.13575,
title = {Ab initio calculations of low-energy nuclear scattering using confining potential traps},
author = {Xilin Zhang and S. R. Stroberg and P. Navrátil and Chan Gwak and J. A. Melendez and R. J. Furnstahl and J. D. Holt},
journal= {arXiv preprint arXiv:2004.13575},
year = {2020}
}
备注
Close to the published version; ancillary files attached; modifications: (1) the naming of the method is changed in the title and text, (2) a concentrated discussion of error sources is included in the main text, and (3) comparisons with existing methods are included in the supplemental material