NEW MEASUREMENT OF THE CHARGE RADIUS OF THE NEUTRON

被引:204
作者
KOPECKY, S [1 ]
RIEHS, P [1 ]
HARVEY, JA [1 ]
HILL, NW [1 ]
机构
[1] OAK RIDGE NATL LAB, OAK RIDGE, TN 37831 USA
关键词
D O I
10.1103/PhysRevLett.74.2427
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The neutron transmission through a thorogenic liquid 208Pb sample 2 in. thick has been measured in the neutron energy range between 0.1 and 360 eV at the ORNL neutron source ORELA. Analyzing the shape of the transmission spectra as a function of neutron energy, agreement was found with the predictions by the atomic form factor. With a sensitivity for the mean squared charge radius of the neutron rn2 as high as 3%, a very reliable and also accurate result of rn2=-0.113±0.003±0.004 fm2 was extracted. For the neutron-electron scattering length we obtained bne=(-1.31±0.03±0.04)×10-3fm. © 1995 The American Physical Society.
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页码:2427 / 2430
页数:4
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