Measurement of the $CP$ -Nonconservation Parameter $\frac{ε^{'}}{ε}$

Publisher Website

15 April 1985

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 54 (15) , 1628-1630
https://doi.org/10.1103/physrevlett.54.1628

Abstract

The value of

\frac{ε^{'}}{ε}

, a measure of the

CP

-nonconserving direct transition from the

K_{L}^{0}

state to the isospin-2 state of two pions, was determined to be 0.0017±0.0082, a result that excludes interesting models of

CP

nonconservation.

Keywords

This publication has 11 references indexed in Scilit:

Improved bounds on some weak amplitudes from the b lifetime
Physics Letters B, 1983
Difficulty for the Weinberg model of $CP$ nonconservation through Higgs-boson exchange
Physical Review D, 1981
Problem for theories with spontaneous $CP$ violation and natural flavor conservation
Physical Review D, 1981
Effective Hamiltonian for $Δ S = 1$ weak nonleptonic decays in the six-quark model
Physical Review D, 1979
Gauge Theory of $CP$ Nonconservation
Physical Review Letters, 1976
CP-Violation in the Renormalizable Theory of Weak Interaction
Progress of Theoretical Physics, 1973
On the decay KL → πoπo
Physics Letters B, 1972
Measurement of $\frac{| η_{00} |}{| η_{+ -} |}$
Physical Review Letters, 1972
Violation of $CP$ Invariance and the Possibility of Very Weak Interactions
Physical Review Letters, 1964
Evidence for the $2 π$ Decay of the $K_{2}^{0}$ Meson
Physical Review Letters, 1964