CP violation in K3

John F. Donoghue, Barry R. Holstein, German Valencia

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21 Citations (Scopus)


For the weak nonleptonic decay K3, we analyze the amount of CP violation expected to arise in the Kobayashi-Maskawa model using two recently uncovered aspects: (1) quadratic terms in the K3 amplitude (found in the CP-conserving data) and (2) electromagnetic and isospin-breaking effects in the relation of the CP-violating parameters of K2 and K3. Previous to the inclusion of these effects the non- signal in +-0 (+-0=++-0) required interference with the highly suppressed I=(3/2 amplitude; however in the present analysis the +-0 signal is not suppressed. We estimate values for +-0 about an order of magnitude larger than previously anticipated, although still smaller than .

Original languageEnglish
Pages (from-to)798-808
Number of pages11
JournalPhysical Review D
Issue number3
Publication statusPublished - 1987
Externally publishedYes

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