ND ZERO-ENERGY SCATTERING

被引：47

作者：

CHEN, CR ^{[1
]}

PAYNE, GL ^{[1
]}

FRIAR, JL ^{[1
]}

GIBSON, BF ^{[1
]}

机构：

[1] UNIV CALIF LOS ALAMOS SCI LAB, DIV THEORET, LOS ALAMOS, NM 87545 USA

来源：

PHYSICAL REVIEW C | 1991年 / 44卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.44.50

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Faddeev-type configuration-space three-body scattering equations are solved for selected two-body- and two-body-plus-three-body-potential model Hamiltonians to obtain absolute predictions for the nucleon-deuteron scattering lengths 2a(nd), 4a(nd), 2a(pd), and 4a(pd). Convergence for these zero-energy scattering parameters as a function of the number of NN-potential partial waves included in the calculation is attained for the first time. Kohn variational estimates provide a measure of the precision of our numerical results. The nd predictions agree well with the measured values. The pd predictions differ substantially from accepted experimental values which are extrapolated from measurements made above 400 keV.

引用

页码：50 / 59

页数：10

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