Finite volume effects in low-energy neutron-deuteron scattering

Finite volume effects in low-energy neutron-deuteron scattering
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低能中子-氘核散射中的有限体积效应

DOI:
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发表时间:
2013
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影响因子:
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通讯作者:
Ulf
Ulf
中科院分区:
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文献类型:
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作者:
Alexander Rokash;E. Epelbaum;H. Krebs;Dean Lee;Ulf

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我们给出了一个在极低能量下的中子-氚散射的格子计算,并详细地研究了拓扑有限体积修正的影响。我们的计算是在低能展开的主导阶无标度有效场论的框架下进行的。使用与核晶格模拟相当的晶格尺寸和晶格间距,我们发现必须考虑拓扑体积修正才能得到准确的中子-氚S波散射长度的结果。
We present a lattice calculation of neutron–deuteron scattering at very low energies and investigate in detail the impact of the topological finite-volume corrections. Our calculations are carried out in the framework of pionless effective field theory at leading order in the low-energy expansion. Using lattice sizes and a lattice spacing comparable to those employed in nuclear lattice simulations, we find that the topological volume corrections must be taken into account in order to obtain accurate results for the neutron–deuteron S-wave scattering lengths.
束缚态与角动量的体积依赖性
DOI: 10.1103/physrevlett.107.112001
发表时间: 2011
影响因子: 8.6
作者:
S. König;D. Lee;H.-W. Hammer
通讯作者: H.-W. Hammer