On the short distance nonperturbative corrections in heavy quark expansion

Details On the short distance nonperturbative corrections in heavy quark expansion On the short distance nonperturbative corrections in heavy quark expansion

2000-11-14

arxiv.org/abs/hep-lat/0011061v1

Nucl.Phys.Proc.Suppl. 94 (2001) 333-336

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, epscrc2 style, LATTICE 2000 (Heavy Quark Physics), Version to appear in Nucl. Phys. B (PS)

Scientific paper

10.1016/S0920-5632(01)00956-2

We study the corrections due to renormalons to the heavy hadron decay width.The renormalons contribution estimated in terms of finite gluon mass based on the assumption that the gluon mass represents the short distance nonperturbative effects in the standard OPE (and hence in the heavy quark expansion). We found that the corrections are about 10% of the leading decay rate. We point out the implications for the assumption of quark-hadron duality in heavy quark expansion.

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