We had already dealt with the neutron enigma in an earlier paper5 and calculated values that were in excellent agreement with the decay times determined experimentally for the two measurement methods solely on the basis of the underlying masses or mass differences. However, this approach was formal, as no knowledge of the decay mechanisms was available and consequently the individual calculation steps could not be justified. The solution approach presented here was based on the neutron decay mechanism described in a recent publication 1 for calculating the decay curve. In combination with the specific structure of the two competing measurement methods, it was possible to predict that, in contrast to the bottle method,energy is continuously extracted from the system in the beam method, which leads to an increase in the lifetime of the neutrons, since energy and decay time are indirectly proportional, as already explained in the paper 5 cited at the beginning. The energy loss during the beam experiment could be quantified on the basis of a simple calculation model. From the resulting residual energy, it was possible to calculate the decay time, which corresponds to that measured by Greene3 within the standard deviation. From the knowledge of the overall mechanism outlined above, some experimental modifications for the beam method can be proposed, which should lead to an approximation of the decay times for both methods:- A reduction in diameter for the beam tube- An increase in the suction voltage to remove the proton- A reduction in the particle density in the beam tube If these experimental changes lead in the direction we predicted, we can consider the neutron enigma solved.