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doi: 10.1103/RevModPhys.19.19pmid: N/A
Data in the literature leading to the neutron-hydrogen mass difference and the neutron mass are summarized. The disintegration energy of the deuteron together with the HH-D mass spectroscopic doublet separation apparently yields the best value of n - H = 0.755 ± 0.016 Mev and a neutron mass of 1.008,941±0.000,02 mass units. Other transmutation-radioactivity cycles check this value. Several inconsistencies in these data and their possible explanation are pointed out. Experiments of interest for improvement in accuracy and reliability of these values are noted.
Marinelli, L. D; Brinckerhoff, R. F; Hine, G. J
doi: 10.1103/RevModPhys.19.25pmid: N/A
For those radio elements whose beta-ray spectra have been adequately investigated, the average kinetic energy E ¯ β is computed by graphical methods. E ¯ β is calculated also as a function of the atomic number Z and the spectral limit E o by means of Fermi's theory for allowed transitions, and compared to these experimental results. It is found that only the well-known experimental values of E ¯ β for the forbidden spectrum of RaE deviates very markedly from the calculated one.
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