The following is a paper by H. Aspden published in Lettere al Nuovo Cimento, v. 31, pp. 383-384 (1981).
Commentary: This is the first of a series of papers by which the author shows the power of the theory in explaining particle lifetime. The lifetime of the mu-meson is important to those who advocate Einstein's theory and in the 1980 book 'Physics Unified' (p. 146) the author had shown how this lifetime could be deduced from his aether theory. That led on in that text to the explanation of how the lifetime changed when the mu-meson was in motion, without involving the mysterious 'time dilation' philosophy.
By 1981 the author had advanced further to show how the same theory could explain neutron lifetime. The problem was that the measured neutron lifetime then reported was about 3% higher than the value established later. Indeed, the author was uncertain in 1981 as to which combination of nucleon energies was involved at the decay trigger threshold. This was clarified in the author's main paper on the neutron [1986d] and it was gratifying to finding that the threshold condition was that of a proton-antiproton pair in the most likely of the possible combinations.