Non Leptonic Heavy Hadron Decays and Local Duality
High Energy Physics - Phenomenology
2011-01-27 v2
Abstract
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.
Keywords
Cite
@article{arxiv.hep-ph/9612406,
title = {Non Leptonic Heavy Hadron Decays and Local Duality},
author = {A. Deandrea and N. Di Bartolomeo and R. Gatto and G. Nardulli},
journal= {arXiv preprint arXiv:hep-ph/9612406},
year = {2011}
}
Comments
15 pages, LaTeX, one reference added, to appear in Phys. Lett. B