Greetings PF! This is my first post...(adsbygoogle = window.adsbygoogle || []).push({});

I keep reading over and over again either "... so and so mediator is massive. Therefore, its interaction is of finite range" or the converse or "... mediator is massless... its interaction is ofinfiniterange..."

Makes sense intuitively (inertia?) However, I am wondering if the true "proof" could be actually somewhat subtle in some way, especially since, apparently, it is impossible to have long range gluon fields even though the gluon is massless

(Follows from asserting that every physical particle is "colorless," so no long range gluon fields are generated to begin with!)

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# Why does the range of an inter. vary inv. w/ the mass of its mediator?

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