Reconsideration of the Electron-Neutron Scattering Length As Measured by the Scattering of Thermal Neutrons by Noble Gases
- 1 September 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 8 (5), 1305-1307
- https://doi.org/10.1103/physrevd.8.1305
Abstract
Our value for the electron-neutron scattering length has been corrected on the basis of new measurements of some neutron scattering lengths and now is (-1.30±0.03) × cm, which is 3% lower than our original result. (The equivalent figure in the Fermi convention is -3630±70 eV and at , .) A check on the worrisome possibility of an impurity in the scattering gases showed that is quite unlikely to be a significant source of error. The difference between our result and the Munich measurement and also the Foldy calculation thus continues unexplained.
Keywords
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