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arXiv · hep-ph/9705324

Slope of the Isgur-Wise function in the heavy mass limit of quark models à la Bakamjian-Thomas

V. Morénas·A. Le Yaouanc·L. Oliver·O. Pène·J. -C. Raynal
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Abstract

The slope of the Isgur-Wise function for ground state mesons is evaluated for the heavy mass limit of quark models à la Bakamjian-Thomas, which has been previously discussed by us in general terms. A full calculation in various spectroscopic models with relativistic kinetic energy gives a rather stable result $ρ^2 \approx 1$, much lower than previous estimates. Attention is paid to a careful comparison of this result with the ones of QCD fundamental methods (lattice QCD, QCD sum rules) and with experimental data.

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V. Morénas, A. Le Yaouanc, L. Oliver, O. Pène, J. -C. Raynal. 1997-05-15. Slope of the Isgur-Wise function in the heavy mass limit of quark models à la Bakamjian-Thomas. https://doi.org/10.1016/s0370-2693(97)00826-5

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