Talk:Bare mass

Removed PROD
I removed the PROD because the concept of bare mass appears to be important in quantum field theory, among other subjects. I know nothing about the subject, but I was easily able to find a few supporting references for its notability. RockMagnetist (talk) 21:54, 24 January 2012 (UTC)

Makes no sense
This article makes no sense to me. Mass is a property of a fundamental particle or an object. It is an intrinsic property, not affected by any fields or matter in the environment (but is affected by relativistic speed of the object, if any). If you don't agree, the burden is on you to describe exactly what you mean by mass. This article, as it stands, should be deleted. David Spector (talk) 21:34, 31 January 2012 (UTC)
 * Bare mass is an accepted notion in Quantum field theory and is distinct from Invariant mass. Article needs writing properly. Xxanthippe (talk) 23:06, 31 January 2012 (UTC).

What about "...$$\delta_m$$ [is] the increase in mass owing to the interaction of the particle with the medium or field"? Mass is a constant depending on the amount of substance (or sum of particles) present. If mass could increase depending on the medium or field, we would have devices that can make things heavier by flicking a switch. We have no such devices (although we can make things temporarily heavier by accelerating them--which does not increase their mass, only their weight). All right, forget about deleting the article. But how about explaining the concept in a way that accords with physics? If no one can find references that do that, then we'll have to delete the article. We cannot mention concepts without explaining them. This is an encyclopedia. David Spector (user/talk) 23:44, 21 February 2012 (UTC)
 * The present state of the article makes good sense and is satisfactory as a stub. The article might be expanded to include such matters as counter terms in the Lagrangian. I prodded the original version because it was rubbish. Xxanthippe (talk) 23:53, 21 February 2012 (UTC).

Lost free energy (delta m)
Unassociated particles in space are assumed to have an amount of "free energy" some of which they lose when they become attached to the motion of an attractive body. The "free energy" of the particle would then have a different free energy related to that of its unit value of that of the the combined particle. There should accordingly be a non-zero value associated with the mass which is not related to its motion.WFPM (talk) 00:40, 25 February 2012 (UTC)