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arXiv · hep-ph/9608277

QCD Sum Rule Analysis for the Λ_b to Λ_c Semileptonic Decay

Yuan-ben Dai·Chao-shang Huang·Ming-qiu Huang·Chun Liu
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Abstract

The 1/m_c and 1/m_b corrections to the Λ_b to Λ_c semi- leptonic decay are analyzed by QCD sum rules. Within the framework of heavy quark effective theory,the subleading baryonic Isgur-Wise func- tion of Λ_b to Λ_c has been calculated. It is shown that the corrections due to the 1/m Lagrangian insertion are negligibly small. The sizable 1/m_Q effect to the decay lies only in the weak current. The decay spectrum and the branching ratio are given.

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Yuan-ben Dai, Chao-shang Huang, Ming-qiu Huang, Chun Liu. 1996-08-09. QCD Sum Rule Analysis for the Λ_b to Λ_c Semileptonic Decay. https://doi.org/10.1016/0370-2693(96)01029-5

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