Results of the coupled channel analysis of π+π−π0, K+K−π0 and K±K0Sπ∓ final states from [formula omitted] annihilation at rest in hydrogen targets at different densities

Abstract

The π+π−π0, K+K−π0 and K±K0π∓ final states produced by p̄p annihilation at rest at three different hydrogen target densities have been analyzed in the frame of a coupled channel analysis together with ππ and πK scattering data. Here we present the main results which concern masses, widths, ππ and KK partial widths of all the involved resonances (JP=0+,1−,2+), the direct determination of ΓKK/Γππ ratio for f0(1370) and f0(1500) (ΓKK/Γππ=0.91±0.20 and ΓKK/Γππ=0.25±0.03, respectively), the determination of a0(1300) parameters (M=1303±16 MeV; Γ=92±16 MeV) and the observation of two different high mass ρ signals associated to ρ(1450) and ρ(1700) (M=1182±30 MeV; Γ=389±20 MeV and M=1594±20 MeV; Γ=259±20 MeV, respectively).