Bounds on Heavy-to-Heavy Mesonic Form Factors

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

1999-06-17

arxiv.org/abs/hep-ph/9906420v1

Phys.Rev. D60 (1999) 116002

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, 10 figures

Scientific paper

10.1103/PhysRevD.60.116002

We provide upper and lower bounds on the form factors for B -> D, D^* 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. We compare our bounds with some of the form factor models used in the literature. All the models we investigated failed to fall within the bounds for the combination of form factors (omega^2 - 1)/(4 omega)|omega h_{A2}+h_{A3}|^2.

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