First result on a new measurement of ε’/ε in the neutral-kaon system
- 25 April 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 60 (17), 1695-1698
- https://doi.org/10.1103/physrevlett.60.1695
Abstract
A new beam line and detector were constructed to increase statistical precision and greatly reduce systematic uncertainty on the ratio of the CP-nonconserving parameters ε’/ε. Major improve- ments are discussed together with a result from a first run: ε’/ε=0.0032±0.0028 (statistical) ±0.0012 (systematic). The precision is better than earlier measurements yet the result is still consistent with the superweak mechanism (which predicts zero) and that due to Kobayashi and Maskawa. Significantly more data are being collected.Keywords
This publication has 9 references indexed in Scilit:
- Present Status of CP ViolationAnnual Review of Nuclear and Particle Science, 1986
- Measurement ofin the Neutral Kaon SystemPhysical Review Letters, 1985
- Measurement of the-Nonconservation ParameterPhysical Review Letters, 1985
- symmetry violation—the search for its originReviews of Modern Physics, 1981
- Precise CoherentRegeneration Amplitudes for C, Al, Cu, Sn, and Pb Nuclei from 20 to 140 GeV/cand Their InterpretationPhysical Review Letters, 1979
- Observation of a Dimuon Resonance at 9.5 GeV in 400-GeV Proton-Nucleus CollisionsPhysical Review Letters, 1977
- CP-Violation in the Renormalizable Theory of Weak InteractionProgress of Theoretical Physics, 1973
- Violation ofInvariance and the Possibility of Very Weak InteractionsPhysical Review Letters, 1964
- Evidence for theDecay of theMesonPhysical Review Letters, 1964