Study of the f2 (1270), f2′ (1525), K ¯ 2∗ (1430), f0 (1370) and f0 (1710) production from ψ (nS) and Y (nS) decays

Abstract

Based on previous studies that support the important role of the f2(1270), f2′(1525), and K¯2∗(1430) resonances in the J/ψ[ψ(2S)]ℙ(ω)VV decays, we make an analysis of the analogous decays of Y(1S) and Y(2S), taking into account recent experimental data. In addition, we study the J/ψ and ψ(2S) radiative decays and we also made predictions for the radiative decay of Y(1S) and Y(2S) into γf2(1270), γf2′(1525), γf0(1370) and γf0(1710), comparing with the recent results of a CLEO experiment. We can compare our results for ratios of decay rates with eight experimental ratios and find agreement in all but one case, where experimental problems are discussed.