Precision neutron interferometric measurement of the nd coherent neutron scattering length and consequences for models of three-nucleon forces -: art. no. 192502

被引：19

作者：

Black, TC ^{[1
]}

Huffman, PR

Jacobson, DL

Snow, WM

Schoen, K

Arif, M

Kaiser, H

Lamoreaux, SK

Werner, SA

机构：

[1] Univ N Carolina, Wilmington, NC 28403 USA

[2] NIST, Gaithersburg, MD 20899 USA

[3] Indiana Univ, IUCF, Bloomington, IN 47408 USA

[4] Univ Missouri, Columbia, MO 65211 USA

[5] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.90.192502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have performed the first high precision measurement of the coherent neutron scattering length of deuterium in a pure sample using neutron interferometry. We find b(nd) = (6.665 +/- 0.004) fm in agreement with the world average of previous measurements using different techniques, b(nd) = (6.6730 +/- 0.0045) fm. We compare the new world average for the nd coherent scattering length b(nd) = (6.669 +/- 0.003) fm to calculations of the doublet and quartet scattering lengths from several modern nucleon-nucleon potential models with three-nucleon force (3NF) additions and show that almost all theories are in serious disagreement with experiment. This comparison is a more stringent test of the models than past comparisons with the less precisely determined doublet scattering length of 2(and) = (0.65 +/- 0.04) fm.

引用

页数：4

共 34 条

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PHYSICAL REVIEW C, 2005, 71 (06):
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PHYSICAL REVIEW C, 2002, 66 (04):
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PHYSICAL REVIEW C, 2005, 71 (04):
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PHYSICAL REVIEW C, 2005, 72 (06):
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PHYSICAL REVIEW LETTERS, 2004, 92 (01) : 5
[30] Polarization transfer measurement for 1H((d)over-right-arrow,(p)over-right-arrow)2H elastic scattering at 135 MeV/nucleon and three-nucleon force effects -: art. no. 014001
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