Strong CP Problem

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A problem in particle physics concerning why the Theta parameter in the strong nuclear force is experimentally found to be zero or very small, which would otherwise violate CP symmetry.

Videos Mentioning Strong CP Problem

What's Going Wrong in Particle Physics? (This is why I lost faith in science.)

What's Going Wrong in Particle Physics? (This is why I lost faith in science.)

Sabine Hossenfelder

A problem in particle physics concerning why the Theta parameter in the strong nuclear force is experimentally found to be zero or very small, which would otherwise violate CP symmetry.