- #36
PAllen
Science Advisor
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Never, ever, did I say anything about particle mass. I explicitly said that’s not what I was referring to, from the very first post on this.vanhees71 said:
Never, ever, did I say anything about particle mass. I explicitly said that’s not what I was referring to, from the very first post on this.vanhees71 said:Yes, in this way you define the total mass of a closed system, but that's not the mass of the particle. It's mass defined by ##P_{\mu} P^{\mu}=M^2 c^2##, where ##P^{\mu}## is the (conserved!) total four-vector of the system.