QCD Sum Rule Analysis for the b → c Semileptonic Decay
he 1/mc and 1/mb corrections to the b → c semileptonic decay are analyzed by QCD sum rules. Within the framework of heavy quark effective theory, the subleading baryonic Isgur-Wise function of b → c has been calculated. It is shown that the corrections due to the 1/m Lagrangian insertion are negligibly small. The sizable 1/mQ effect to the decay lies only in the weak current. The decay spectrum and the branching ratio are given.
he 1/mc and 1/mb corrections to the b c semileptonic decay are analyzed by QCD sum rules. Within the framework of heavy quark effective theory, the subleading baryonic Isgur-Wise function of b c has been calculated. It is shown that the corrections due to the 1/m Lagrangian insertion are negligibly small. The sizable 1/mQ effect to the decay lies only in the weak current. The decay spectrum and the branching ratio are given.
Yuan-ben Dai、Ming-qiu Huang、Chao-shang Huang、Chun Liu
物理学
heavy baryon weak decay heavy quark effective theory QCD sum rule 1/mQ correction.
Yuan-ben Dai,Ming-qiu Huang,Chao-shang Huang,Chun Liu.QCD Sum Rule Analysis for the b → c Semileptonic Decay[EB/OL].(2017-09-17)[2025-06-12].https://chinaxiv.org/abs/201709.00044.点此复制
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