Bounds on Heavy-to-Heavy Baryonic Form Factors

Details Bounds on Heavy-to-Heavy Baryonic Form Factors Bounds on Heavy-to-Heavy Baryonic Form Factors

1999-07-29

arxiv.org/abs/hep-ph/9907557v1

Phys.Rev. D61 (2000) 016005

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 9 figures

Scientific paper

10.1103/PhysRevD.61.016005

Upper and lower bounds are established on the Lambda_b -> Lambda_c semileptonic decay form factors by utilizing inclusive heavy-quark-effective-theory sum rules. These bounds are calculated to leading order in Lambda_QCD/m_Q and alpha_s. The O(alpha_s^2 beta_0) corrections to the bounds at zero recoil are also presented. Several form factor models used in the literature are compared with our bounds.

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