Analysis of Lambda_b to Lambda_c Weak Decays in Heavy Quark Effective Theory

Details Analysis of Lambda_b to Lambda_c Weak Decays in Heavy Quark Effective Theory Analysis of Lambda_b to Lambda_c Weak Decays in Heavy Quark Effective Theory

1998-03-30

arxiv.org/abs/hep-ph/9803489v1

Phys.Rev.D58:014013,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, latex, 4 figures, to appear in Phys. Rev. D (1998)

Scientific paper

10.1103/PhysRevD.58.014013

The Lambda_b to Lambda_c semileptonic decay is analyzed in the framework of heavy quark effective theory to the order of 1/m_c and 1/m_b. The QCD sum rule and large N_c predictions to the decay form factors are applied. It argues that the subleading baryonic Isgur-Wise function in the large N_c limit vanishes. The decay rates, distributions and asymmetry parameters are calculated numerically. Some of the nonleptonic decay modes are discussed in the end.

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