Neutrons would change their mass if they approach the speed of light. If they happen to circulate in a coherent system they may become more massive based on their velocity in the system. I doubt that rest mass changes any. IMHO a neutrons mass is related to the mass of the electrons and positrons that make it up, plus the binding energy that keep the electrons and positrons together.
William Stubbs paper in issue 129 of Infinite Energy (October 2016) evaluating high energy scattering data probing the structure of protons and P. Hatt’s theory of proton, neutron and muon structure are pertinent to the determination of rest masses of these particles. I am planning a seminar to address these papers and other related theory and experimental data concerning this question of physical reality, during a evening meeting at the ICCF-21 conference on June 6. 2018 at Ft. Collins, CO CSU campus. Bob Cook From: Jed Rothwell<mailto:jedrothw...@gmail.com> Sent: Monday, May 21, 2018 8:01 AM To: Vortex<mailto:vortex-l@eskimo.com> Subject: Re: [Vo]:The PP fusion reaction in LENR Russ <russ.geo...@gmail.com<mailto:russ.geo...@gmail.com>> wrote: Might you point to a reference where the mass of neutrons in deuterium vs. other nuclides is said to be different. I do not understand. Is the claim here that a neutron in deuterium is heavier or lighter than a neutron in some other element? There are different kinds or neutrons, or entering deuterium changes the mass? That seems extremely unlikely to me.
