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Title: Vacuum Insertion Method from Chiral Nc \to \infty Approach for the \Delta S = 1 Effective Hamiltonian
Authors: Białas, Piotr
Zalewski, K.
Keywords: hamiltonian; fizyka jądrowa
Issue Date: 1991
Citation: Acta Physica Polonica. B, 1991, no. 3, s. 319-324
Abstract: We check to what extent the assumptions of the vacuum insertion method, as used in the theory o f K —* tttt decays, can be derived from the high N c approximation to the chiral perturbation theory. We find that, besides the well-known problem of Fierz terms, only the assumption for the K 13 formfactor ( /_ = 0) does not follow. This assumption, however, affects the penguin contributions by less than four per cent and the nonpenguin contributions by less than two percent[…]
ISSN: 0587-4254
Appears in Collections:Artykuły (WNŚiT)

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