On the short distance nonperturbative corrections in heavy quark expansion

S. Arunagiri

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arXiv · hep-ph/0009109

On the short distance nonperturbative corrections in heavy quark expansion

S. Arunagiri

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Abstract

We estimate the renormalon corrections to the inclusive decay rate of heavy hadrons. We assume the gluon mass term $λ^2 \gg `^2$ to imitate the short distance nonperturbative effects. It is found that the the inclusive decay rates are corrected by an amount of about 0.2 $Γ_0$ for $B$ meson and 0.21 $Γ_0$ for baryon. This is significant in view of the discrepancy of lifetimes of $B$ and $\lbb$.

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S. Arunagiri. 2000-09-10. On the short distance nonperturbative corrections in heavy quark expansion. https://arxiv.org/abs/hep-ph/0009109

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