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Results tagged with propagator
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user 335112
propagator gives the probability amplitude for a particle to travel from one place to another in a given time, or to travel with a certain energy and momentum.
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Product of Lorentz invariant factors may be Lorentz non-invariant
The integrand is constructed of a potential and the propagator of 2 particles. … The first two-particle propagator is Lorentz invariant by construction. Its width is constructed to constrain it to time-like particles only. …
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Product of Lorentz invariant factors may be Lorentz non-invariant
I have an answer. After banging my head off of chain rule and change of variables non-sense all day, I recalled that 0+0=0 and $\frac{d}{dx}xy=y$. That means that the Lorentz test for one 4-vector doe …
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