Coupled channel analysis of , and from annihilation at rest in hydrogen targets at three densitiesThe OBELIX Collaboration
(Received: 15 July 2002 / Published online: 9 December 2002)
The , and final states produced by annihilation at rest at three different hydrogen target densities have been analyzed in the frame of a coupled channel analysis together with , and scattering data. The percentages of the different partial waves, the branching ratios and the parameters (masses, widths, and partial widths) of all the involved resonances ( JP=0+,1-,2+) have been measured. The main results on meson spectroscopy concern the determination of the ratio for f0(1370) and f0(1500) ( and respectively), the determination of a0(1300) parameters ( MeV; MeV) and the observation of two different signals associated to and ( MeV; MeV and MeV; MeV respectively).
© Società Italiana di Fisica, Springer-Verlag 2003