Bound on CP nonconservation in KL→2γ decay

Glennys R. Farrar, S. B. Treiman

    Research output: Contribution to journalReview articlepeer-review


    The surprisingly small upper bound recently established for KL→μ++μ- decay is exploited, via unitarity, to set an upper bound on KL decay to a two-photon state with spin-parity 0+. Special circumstances operate here to lend a fair degree of credibility to the analysis. The fraction of KL→2γ decays which proceed in this CP-nonconserving mode is less than ∼0.37.

    Original languageEnglish (US)
    Pages (from-to)257-259
    Number of pages3
    JournalPhysical Review D
    Issue number1
    StatePublished - 1971

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)


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