Abstract

A precise set of measurements of the variation of the transmission of liquid bismuth with energy in the range 0.1 ev to 10 ev has been made. After correction for neutron capture, Doppler effect and liquid diffraction, a value of ${V}_{0}=\ensuremath{-}4.34\ifmmode\pm\else\textpm\fi{}0.14$ kev is obtained as the depth of the potential well having a radius equal to the classical electron radius. This gives -0.26\ifmmode\pm\else\textpm\fi{}0.14 kev as the strength of the intrinsic neutron-electron interaction after subtraction of the Foldy term.

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