On the Theoretical Understanding of Inclusive $Λ_b$ Decays

Details On the Theoretical Understanding of Inclusive $Λ_b$ Decays On the Theoretical Understanding of Inclusive $Λ_b$ Decays

1996-11-05

arxiv.org/abs/hep-ph/9611236v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at the XXVIII International Conference on High Energy Physics ICHEP'96, Warsaw, Poland, July 25-31, 1996. LaTex, 4

Scientific paper

I discuss a QCD sum rule determination of the four-quark operator matrix
elements contributing to the $\Lambda_b$ inclusive decay rates at the order
$m_b^{-3}$. The results suggest that $1/m_b^3$ corrections are not responsible
of the observed difference between the lifetimes of $\Lambda_b$ and $B_d$.

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