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arXiv · hep-ph/9604425

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

P. Colangelo·F. De Fazio
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Abstract

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 $B_d$.

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P. Colangelo, F. De Fazio. 1996-04-29. Role of Four-Quark Operators in the Inclusive $Λ_b$ Decays. https://doi.org/10.1016/0370-2693(96)01049-0

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