Title of article :
QCD sum rule analysis for the Λb → Λc semileptonic decay
Author/Authors :
Yuan-ben Dai، نويسنده , , Chao-Shang Huang، نويسنده , , Ming-qiu Huang، نويسنده , , Chun Liu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1996
Abstract :
The 1mc and 1mb corrections to the Λb → Λc semileptonic decay are analyzed by QCD sum rules. Within the framework of heavy quark effective theory, the subleading baryonic Isgur-Wise function of Λb → Λc has been calculated. It is shown that the corrections due to the 1m Lagrangian insertion are negligibly small. The sizable 1mQ 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 , View the MathML source correction
Journal title :
PHYSICS LETTERS B
Journal title :
PHYSICS LETTERS B
