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Compare & contrast properties of strong & weak interactions
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[QUOTE="Flucky, post: 4981480, member: 373056"] For those who might read this in future, my lecturer came back to me with a few things more that should be said: Gluons are massless, leading to a long-range force. They couple to colour (carried by quarks) and also carry composite colour, so can interact with each other, which leads to colour-screening effects at short distance. The strength of the force therefore increases with increasing distance (or decreasing momentum transfer). (The strong interaction can involve hadrons - particles made of quarks - not just the bare quarks themselves.) The W & Z are very massive (80-90 GeV/c^2), leading to a very short range. (You do give the fall with distance.) At very short distances (10^-18 m), the strength is no less than the EM interaction. [/QUOTE]
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Compare & contrast properties of strong & weak interactions
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