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QCD sum rule analysis for the Lambda(b)->Lambda(c) semileptonic decay
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DOI：10.1016/0370-2693(96)01029-5.png)
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Abstract
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The 1/m(c) and 1/m(b) corrections to the Lambda(b) --> Lambda(c) semileptonic decay are analyzed by QCD sum rules, Within the framework of heavy quark effective theory, the subleading baryonic Isgur-Wise function of Lambda(b) --> Lambda(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.
Keywords:
heavy baryon
weak decay
heavy quark effective theory
QCD sum rule
1/m(Q) correction
Journal
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4.5
Papers:
3.2W
Citations:
7.3W
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