Epsilon'/Epsilon in the Standard Model: Theoretical Update
Pich, A.
Original · EN
A complete analysis of isospin breaking in K to 2 pion amplitudes, including both strong and electromagnetic corrections at next-to-leading order in chiral perturbation theory, has been achieved recently.We discuss the implication of these effects, together with the previously known chiral loop corrections, on the direct CP-violating ratio epsilon'/epsilon. One finds Re(epsilon'/epsilon) = (19⁺¹¹₋₉) 10⁻⁴.
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