arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1201.0169nucl-th
收藏

手征三核子力的动量空间演化

Momentum space evolution of chiral three-nucleon forces

Kai Hebeler

摘要:

本文提出了一个在平面波基上用相似重整化群(SRG)来演化三核子(3 N)力的框架,并将其应用于由手征次-次-主导手征有效场论(N $^2$ LO)导出的相容相互作用.我们证明了SRG变换的么正性,显示了低和高动量的解耦,并提出了在低分辨率尺度下手征3 N力的普遍性的第一次调查。动量空间演化的3 N力是一致的,可以直接与标准SRG演化的双核子(NN)相互作用结合,用于原子核结构和反应的从头计算。

英文摘要:

A framework to evolve three-nucleon (3N) forces in a plane-wave basis with the Similarity Renormalization Group (SRG) is presented and applied to consistent interactions derived from chiral effective field theory at next-to-next-to-leading order (N$^2$LO). We demonstrate the unitarity of the SRG transformation, show the decoupling of low and high momenta, and present the first investigation of universality in chiral 3N forces at low resolution scales. The momentum-space-evolved 3N forces are consistent and can be directly combined with the standard SRG-evolved two-nucleon (NN) interactions for ab-initio calculations of nuclear structure and reactions.

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。

↑