论文标题
$λNN的部分波扩展$三 - 三脑互动
Partial-wave expansion of $ΛNN$ three-baryon interactions in chiral effective field theory
论文作者
论文摘要
提出了三 - 巴里族相互作用在手学有效场理论中的部分波扩张的表达。该派生遵循Hebeler等人的方法。 [物理。 Rev. c {\ bf 91}，044001（2015）]，但最终表达式更一般。也就是说，对相互作用的高级自旋摩托明结构进行了系统的处理。使用派生公式，评估了$λ$ -Deuteron折叠电位。该信息对于推断$λnn$三 - 巴里昂力对Hypertriton的可能贡献是有价值的，这是通过复杂的FADDEEV计算进一步研究的基础。对$λnn$三 - 巴里昂的力量以及两体$λn$相互作用的微观理解对于描述超核和中子星物质至关重要。
An expression of partial wave expansion of three-baryon interactions in chiral effective field theory is presented. The derivation follows the method by Hebeler et al. [Phys. Rev. C{\bf 91}, 044001 (2015)], but the final expression is more general. That is, a systematic treatment of the higher-rank spin-momentum structure of the interaction becomes possible. Using the derived formula, a $Λ$-deuteron folding potential is evaluated. This information is valuable for inferring the possible contribution of the $ΛNN$ three-baryon forces to the hypertriton as the basis of further studies by sophisticated Faddeev calculations. A microscopic understanding of $ΛNN$ three-baryon forces together with two-body $ΛN$ interactions is essential for the description of hypernuclei and neutron-star matter.
