Leptonic widths of high excitations in heavy quarkonia

A.M. Badalian, A.I. Veselov, B.L.G. Bakker

    Research output: Contribution to JournalArticleAcademicpeer-review


    Agreement with the measured electronic widths of the resonances ψ(4040), ψ(4415) and Υ(11 019) is shown to be obtained if two effects are taken into account: (i) a flattening of the confining potential at distances r ≳ 1.2 fm, which gives a drop in the leptonic widths of high excitations of about 10-20%, but does not affect low-lying states, and (ii) switching off the gluon-exchange (GE) interaction for those nS states which have a rms radius r
    Original languageEnglish
    Pages (from-to)417-425
    JournalJournal of Physics G. Nuclear and Particle Physics
    Issue number5
    Publication statusPublished - 2005

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    Times Cited: 13


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