Analysis of two recent tests of T-invariance
Inequality of the rates for K0 → π+e− υ− and K0 → π−e+ν transitions, reported by CPLEAR, and an asymmetry in the distribution of the dihedral angle between the π+π− and e+e− planes in KL → π+π−e+e− decays, found by KTeV, have been announced as demonstrations of T-noninvariance. These results are critically interpreted and compared as proofs of the failure of reciprocity.
Volume 95, 2021
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