Heavy-quark binding and kinetic energies in heavy-light mesons and the constituent quark model

Details Heavy-quark binding and kinetic energies in heavy-light mesons and the constituent quark model Heavy-quark binding and kinetic energies in heavy-light mesons and the constituent quark model

1997-09-04

arxiv.org/abs/hep-ph/9709247v2

Phys.Lett. B415 (1997) 273-279

Physics

High Energy Physics

High Energy Physics - Phenomenology

to appear in Physics Letters B

Scientific paper

10.1016/S0370-2693(97)01288-4

The spin-averaged binding energy and the hyperfine mass splitting of heavy-light mesons are investigated within the constituent quark model as a function of the inverse heavy-quark mass. It is shown that the so-called heavy-quark kinetic energy, -lambda1 / 2mQ, may differ remarkably from the non-relativistic expectation / 2mQ, thanks to relativistic effects in the effective interquark potential for heavy-light mesons, which may yield substantial 1 / mQ corrections to the heavy-quark static limit. The determination of the difference of the hadronic parameter lambda1 in the B(u(d)) and B(c) mesons can provide information about the strength of relativistic effects in the interquark interaction.

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