Possibility to observe higher n(3)D(1) bottomonium states in the e(+)e(-) processes

A.M. Badalian, B.L.G. Bakker, I.V. Danilkin

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    Abstract

    The possibility to observe new bottomonium states with JPC=1 - in the region 10.7-11.1 GeV is discussed. The analysis of the dielectron widths shows that the (n+1)S13 and nD13 states (n 3) may be mixed with a rather large mixing angle, θ 30°, and this effect provides the correct values of Γee(Υ(10580)) and Γee(Υ(11020)). On the other hand, the S-D mixing gives rise to an increase by 2 orders of magnitude of the dielectron widths of the mixed Υ (nD13) resonances (n=3, 4, 5), which originate from pure D-wave states. The value Γee(Υ (3D))=0.095-0.025+0.028keV is obtained, being only ∼3 times smaller than the dielectron width of Υ(10580), while Γee(Υ (5D))∼135eV appears to be close to Γee(Υ(11020)) and therefore this resonance may become manifest in the e+e- experiments. The mass differences between M(nD) and M((n+1)S) (n=4, 5) are shown to be rather small, 50±10MeV. © 2009 The American Physical Society.
    Original languageEnglish
    Pages (from-to)037505
    JournalPhysical Review D
    Volume79
    Issue number3
    DOIs
    Publication statusPublished - 2009

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