Inter-Flavor Consistency Resulting from Universal Potential Inspired by QCD : Particles and Fields

概要

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The potential model has so far systematized various quantities of quarkonium belonging to particular flavor, but it was not enough to say that the consistency between the quarkonia with different flavors was proved. Further careful analyses were made by using the potential restricted by the asymptotic behavior of QCD and some stringent experimental constraints. This potential contains only two parameters Λ (scale parameter) and k (confining parameter) which have been loosely limited by the deep inelastic scattering and the Regge slope. In this note, we further restrict them by using fine structure of quarkonium. Λ and k are severely restricted in almost the same regions in spite of the difference of flavors. This reflects the adequacy of potential form. This form of potential is extensively applied to lighter quarkonia only by sliding m_Q. The ψ data including fine- and hypervine-splitting are fairly well reproduced. Unexpectedly, even lighter mesons, which have been considered to be outside of the semirelativistic treatment (e.g., Breit-Fermi), have the qualitative tendency expected by sliding m_Q from heavy quarkonia. The predictions related to topoium are also given to corroborate this potential.
理論物理学刊行会の論文
1986-02-25