Abstract
The cross sections of the reactions e+e– → ϒ(nS)π+π− (n = 1, 2,3) and e+e– → h b (nP)π+π− (n = 1, 2) are measured as a function of the cms collision energy from their thresholds up to 11.02 GeV using the data of the Belle experiment operating at the KEKB e+e– collider. The peaks of the ϒ(10 860) and ϒ(11020) resonances are observed in the cross sections with an insignificant contribution of the continuum. The decay ϒ(11020) → h b (nP)π+π− is found to fully proceed through intermediate isovector states Z b (10610) and Z b (10650).
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