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A precision measurement of direct CP violation in the decay of neutral kaons into two pions

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arxiv hep-ex/0208009 v1 pith:5KAYFD7Q submitted 2002-08-08 hep-ex

J.R. Batley , et al , NA48 collaboration This is my paper · ORCID
classification hep-ex
keywords epsilondatadecaydirectkaonsna48neutralpions
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The direct CP violation parameter Re(epsilon'/epsilon) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. The 2001 running period was devoted to collecting additional data under varied conditions compared to earlier years (1997-99). The new data yield the result: Re(epsilon'/epsilon) = (13.7 +/- 3.1) times 10^{-4}. Combining this result with that published from the 1997, 98 and 99 data, an overall value of Re(epsilon'/epsilon) = (14.7 +/- 2.2) times 10^{-4} is obtained from the NA48 experiment.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Correlating $\epsilon^\prime/\epsilon$ to hadronic $B$ decays via $U(2)^3$ flavour symmetry

    hep-ph 2019-09 conditional novelty 6.0 of 10

    A U(2)^3 flavour-symmetric effective field theory can consistently explain the epsilon'/epsilon anomaly and hadronic B decay CP asymmetries, with a global fit about 3 sigma better than the Standard Model.

  2. CP violation studies at Super Tau-Charm Facility

    hep-ex 2025-02 conditional novelty 4.0 of 10

    A future Super Tau-Charm Facility is projected to test CP violation in hyperon, tau, and charm decays at 1e-4 to 1e-3 sensitivities and improve the kaon CPT mass-difference limit tenfold.

  3. Constraints on New Physics from $B$ mesons

    hep-ph 2019-08 unverdicted

    A 2019 review of B meson and kaon physics anomalies, summarizing the evidence for lepton flavor universality violation and tensions in mixing and CP violation, and assessing new physics explanations.

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