A controlled experimental test of whether weak interactions preserve mirror symmetry.
Physical Review 105, 1413–1415, 1957
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How can an experiment test whether a symmetry holds?
Experimental physics, including a test of parity conservation in beta decay. Reconstruct the prediction, arrangement and observation before discussing the historical recognition.
Ideas and questions
Read background definitions when a term blocks the argument. Then return to the source and reconstruct its claim in your own words.