caveman1917

2010-Jun-27, 01:24 PM

This is a question i had while reading through an ATM-thread, so i thought i'd just repost it here rather than take that thread further off-track.

A virtual particle is defined (i think) as a particle which satisfies

E² != p²c² + m₀²c⁴ for some small enough Δt. Where m₀ is a constant (the rest mass of the particle).

Could this equally well be defined as satisfying

E² = p²c² + m₀²c⁴ for some small enough Δt. Where m₀ is not a constant (thus not equal to the 'normal' rest mass of the particle)?

A virtual particle is defined (i think) as a particle which satisfies

E² != p²c² + m₀²c⁴ for some small enough Δt. Where m₀ is a constant (the rest mass of the particle).

Could this equally well be defined as satisfying

E² = p²c² + m₀²c⁴ for some small enough Δt. Where m₀ is not a constant (thus not equal to the 'normal' rest mass of the particle)?