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arXiv · hep-ph/0112204

Λ_b Lifetime from the HQET Sum Rule

Chao-Shang Huang·Chun Liu·Shi-Lin Zhu
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Abstract

The HQET sum rule analysis for the Λ_b matrix element of the four-quark operator relevant to its lifetime is reported. Our main conclusion is that the lifetime ratio τ(Λ_b)/τ(B^0) can be as low as 0.91.

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Chao-Shang Huang, Chun Liu, Shi-Lin Zhu. 2001-12-14. Λ_b Lifetime from the HQET Sum Rule. https://doi.org/10.1142/9789812777379_0040

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