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charge conjugation

   Also found in: Wikipedia 0.01 sec.
charge conjugation
n. Symbol C
1. A mathematical operator that changes the sign of the charge and of the magnetic moment of every particle in the system to which it is applied.
2. The theoretical conversion of matter to antimatter or of antimatter to matter.
charge conjugation
A reversal of the sign of the charge, the magnetic moment, and other internal quantum numbers of every particle in the system to which it is applied, effectively turning every particle into its antiparticle. In the mathematics of quantum mechanics, this operation is denoted by the operator "C". It had long been assumed that charge conjugation, together with parity conjugation, should leave the behavior of a physical system unchanged, but observations of kaon decay suggest this is not always the case. See also conservation law.


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According to well known theoretical conjectures, supported by experimental observations, the combined charge conjugation and parity symmetry (CP) and time reversal symmetry (I) are closely related by the CPI-theorem.
Search for time reversal violating effects: R-correlation measurement ... by Zejma, J. / Journal of Research of the National Institute of Standards and Technology
3] He Self-Compensating Magnetometer," is to perform a high-precision test of combined charge conjugation, parity inversion, and time reversal (CPT) invariance and local Lorentz invariance by comparing the Larmor precession frequencies of potassium (K) and helium 3 ([He.
TWO NEW PRECISION MEASUREMENT GRANTS AWARDED FOR FY 2001 by Journal of Research of the National Institute of Standards and Technology
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