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New determination of the deuteron binding energy and the neutron mass

1986; American Physical Society; Volume: 56; Issue: 8 Linguagem: Inglês

10.1103/physrevlett.56.819

1092-0145

Geoffrey L. Greene, E. G. Kessler, Richard D. Deslattes, H. Börner,

Radioactive Decay and Measurement Techniques

A new value for the deuteron binding energy of B(d)=2.388 176 8(24)\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}3}$ u is reported based on an absolute wavelength determination of the 2.2-MeV n-p capture \ensuremath{\gamma} ray. Derived values of the n-H and n-p mass differences are also given. We also derive ${M}_{n}$=1.008 664 919(14) u. We note that the uncertainties in the neutron-mass data are now dominated by uncertainties arising from mass spectroscopy.