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| Paper IPM / P / 14921 |
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The resonance Zb(10610) is investigated as the diquark-antidiquark The mass and current coupling of the resonance Z_b(10610) are evaluated using QCD two−point sum rule and taking into account the vacuum condensates up to ten dimensions. We study the vertices of the decays Zb → Υ(nS)π. We explore also the vertices Zbhb(mP)π (m=1,2) and calculate the couplings gZb hb(mP)π and width
of the decay channels Zb → hb(mP)π. To this end, we calculate the mass and decay constants of the hb(1P) and hb(2P) mesons.
The results obtained are compared with experimental data of the Belle Collaboration.
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