CP invariance

American  

noun

1. Physics. In full, charge parity invariance. the theoretical principle that a combination of charge conjugation and parity conjugation should result in a physical system indistinguishable from the original one.

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CP invariance Scientific  

/ sē′pē′ /

1. Short for charge parity invariance. A form of invariance in which reversing the sign of all charges and all spatial dimensions in the description of the physical system results in an indistinguishable physical system. CP invariance does not appear to hold in nature, as evidenced by the decay of kaons.

2. See also charge conjugation parity conjugation

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