Non Leptonic Heavy Hadron Decays and Local Duality

Details Non Leptonic Heavy Hadron Decays and Local Duality Non Leptonic Heavy Hadron Decays and Local Duality

1996-12-19

arxiv.org/abs/hep-ph/9612406v2

Phys.Lett.B398:353-360,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, LaTeX, one reference added, to appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(97)00236-0

We discuss local duality for weak non leptonic B and Lambda_b decays in the m_b -> infinity limit under the hypothesis of factorization and in the Shifman-Voloshin limit. We show that, under these hypotheses, local duality holds for the first two terms in the 1/m_b expansion and at the order alpha_s in the perturbative expansion. The possible relevance of these results for the operator product expansion evaluation of the b-hadron lifetimes is discussed.

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