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arXiv 0707.4680nucl-th
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手征有效场论中的三核子局域相互作用

Local three-nucleon interaction from chiral effective field theory

Petr Navratil

摘要:

在手征有效场论中导出的次-次-领先阶(N2 LO)的三核子(NNN)相互作用用一个依赖于动量转移大小的函数来调节。然后,调节的NNN相互作用在坐标空间中是局部的,这对于一些多体技术是有利的。在三核子基础上计算了局域手征NNN相互作用的矩阵元。采用从头算无核壳模型(NCSM),在~ 3 H和~ 4 He的束缚态计算中采用了NNN矩阵元。

英文摘要:

The three-nucleon (NNN) interaction derived within the chiral effective field theory at the next-to-next-to-leading order (N2LO) is regulated with a function depending on the magnitude of the momentum transfer. The regulated NNN interaction is then local in the coordinate space, which is advantages for some many-body techniques. Matrix elements of the local chiral NNN interaction are evaluated in a three-nucleon basis. Using the ab initio no-core shell model (NCSM) the NNN matrix elements are employed in 3H and 4He bound-state calculations.

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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