ar X iv : h ep - p h / 95 07 35 8 v 1 2 0 Ju l 1 99 5 Nonfactorizable contributions to weak D → PV decays

ar X iv : h ep - p h / 02 10 35 3 v 1 2 5 O ct 2 00 2 Nonfactorizable effects in B → J / ψK

The method of QCD light-cone sum rules is used to calculate soft nonfactorizable contributions to the decay amplitude for B → J/ψK. The result confirms expectations that in color-suppressed decays nonfactorizable corrections can be sizable.

ar X iv : h ep - p h / 95 07 29 2 v 1 1 2 Ju l 1 99 5 The Crucial Role of ωπ + Production in the D + s Decay

In this paper the relevance of non-spectator decays of charm particles is analysed and some crucial tests for it are suggested.

ar X iv : h ep - p h / 96 07 47 1 v 1 3 0 Ju l 1 99 6 Non - leptonic weak decays and final state interactions in lattice QCD ∗ †

We show that, under a reasonable " smoothness " hypothesis, it is possible to extract informations on the amplitude and phase of two-body non-leptonic weak decay matrix elements from the study of Euclidean correlation functions in lattice QCD.

ar X iv : h ep - p h / 98 05 30 4 v 1 1 3 M ay 1 99 8 Λ b → Λ c P ( V ) Nonleptonic Weak Decays

ar X iv : h ep - p h / 99 05 39 8 v 1 1 9 M ay 1 99 9 Resonances in weak nonleptonic Ω − decay

We examine the importance of JP = 12 + , 12 − resonances for weak nonleptonic Ω− decays within the framework of chiral perturbation theory. The spin-1/2 resonances are included into an effective theory and tree contributions to the Ω− decays are calculated. We find significant contributions to the decay amplitudes and satisfactory agreement with experiment. This confirms and extends previous re...