https://vital.lib.tsu.ru/vital/access/manager/Index en-us 5 https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000643963 Wed 28 Nov 2018 15:57:40 KRAT ]]> https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000535869 Wed 05 Dec 2018 11:04:07 KRAT ]]> https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000535373 Tue 04 Dec 2018 10:12:40 KRAT ]]> https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000532444 Thu 06 Dec 2018 11:34:06 KRAT ]]> https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000529892 Thu 06 Dec 2018 11:27:25 KRAT ]]> https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000530308 Thu 06 Dec 2018 11:27:22 KRAT ]]> https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000529869 n, m=2,3,4,5, n=1,2,3), charmonia J/ψ→ϕ(ππ,KK¯), ψ(2S)→J/ψππ, and the isoscalar S-wave processes ππ→ππ,KK¯,ηη. In this analysis we extend our recent study of low-lying (m=2,3) radial excitations of bottomonia to modes involving higher (m=4,5) excited states. Similarly as for the data on lower radial excitations, we confirm that the data for higher radially excited states from the BABAR and Belle collaborations can be described under conditions that the final bottomonium is a spectator and the multichannel ππ scattering is considered in a model-independent approach based on analyticity, unitarity and the uniformization procedure. Indeed we show that the dipion mass distributions in the two-pion transitions of both charmonia and bottomonia states are explained by a unified mechanism based on the contribution of the ππ and KK¯ coupled channels including their interference (final-state interactions). Therefore, our main result is that the lower and higher radially excited states of charmonia and bottomonia have no specific features in mutual comparison and can be understood in a unified picture, e.g. proposed by our approach.]]> Mon 10 Dec 2018 16:43:09 KRAT ]]> https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000532449 Mon 10 Dec 2018 12:17:30 KRAT ]]> https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000532447 n,m=2,3,n=1,2) in our model-independent approach, we can explain the two-pion energetic spectra of these Υ transitions including the two-humped shape of the di-pion mass distribution in Υ(3S)→Υ(1S)ππ as the coupled-channel effect. It is shown also that the considered bottomia decay data do not offer new insights into the nature of the f0 mesons, which were not already deduced in our previous analyses of pseudoscalar meson scattering data.]]> Mon 10 Dec 2018 12:03:10 KRAT ]]> https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000535871 Mon 10 Dec 2018 11:42:13 KRAT ]]>