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arXiv · hep-ph/9408238

Slope of the Isgur-Wise Function from a QSSR Constraint on the $ΥB\bar{B}$ Couplings

Irinel Caprini
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Abstract

We derive optimal upper and lower bounds on the slope of the Isgur-Wise function at the zero recoil point in terms of the sum of the $ΥB\bar{B}$ couplings, estimated recently from a $QCD$ Spectral Sum Rule ($QSSR$). The problem is solved by means of a duality theorem in functional optimization. Optimal correlations between the slope and the convexity parameters of the Isgur-Wise function with the same input are also obtained.

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Irinel Caprini. 1994-08-05. Slope of the Isgur-Wise Function from a QSSR Constraint on the $ΥB\bar{B}$ Couplings. https://doi.org/10.1016/0370-2693(94)91153-3

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