Weakly-induced strong CP-violation
(2012) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 716, n° 2, p. 316-321 (2012)
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- Abstract
- Weak interaction contributions to the strong θ parameter are revisited in the frame of a large-Nc Chiral Perturbation Theory. Focusing on the hadronic η→ππ amplitudes, we express these second-order corrections in terms of the CP-violating parameter in K→ππ decays to obtain Δwθ≈10-17 at O(GF2ε‧).
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Gérard, J.-M., & Mertens, P. (2012). Weakly-induced strong CP-violation. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 716(2), 316-321. https://doi.org/10.1016/j.physletb.2012.08.036 (Original work published 2012)