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Role of Four-Quark Operators in the Inclusive $Λ_b$ Decays

We compute by QCD sum rules the matrix elements of the relevant four-quark operators appearing in the expression of the $Λ_b$ inclusive decay rates at the order $1/m_b^3$. The results suggest that $1/m_b^3$ corrections are not responsible of the observed difference between the lifetime of $Λ_b$ and $B_d$.

preprint1996arXivOpen access
P. ColangeloF. De Fazio
hep-ph
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Open access2 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
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P. ColangeloF. De Fazio

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