Theory of Nonleptonic B Decays

Details Theory of Nonleptonic B Decays Theory of Nonleptonic B Decays

1999-11-08

arxiv.org/abs/hep-ph/9911269v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 4 figures; invited talk presented at the 8th International Symposium on Heavy Flavour Physics (Heavy Flavours 8), So

Scientific paper

I briefly review some recent progress in the theory of nonleptonic B decays. After introducing the operator product expansion and the relevant effective Hamiltonian, I discuss the domain of validity and the theoretical justification of the factorization approximation and of its generalizations. Furthermore, I review some general parameterizations of B decay amplitudes: the "diagrammatic" approach and the formalism based on Wick contractions in the matrix elements of four-fermion operators.

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