I=0, C=-1 mesons from 1940 to 2410 MeV

Abstract

New Crystal Barrel data are reported for pbar-p -> omega-eta and pbar-p -> omega-pizero-pizero with omega decaying to piplus-piminus-pizero. The omega-eta data confirm angular distributions obtained earlier from data where omega -> pizero-gamma. The new omega-eta data provide accurate measurements of vector and tensor polarisations of the omega and lead to considerable improvements in masses and widths of s-channel resonances. A new J^PC = 3^+- I = 0 resonance is observed with mass M = 2025+-20 MeV and width Gamma = 145+-30 MeV. Polarisation is close to zero everywhere and tensor polarisations are large, as is the case also for pbar-p -> omega-pizero.

Makes available the final combined analysis of these quantum numbers. 12 pages, 7 figures

References in corpus (3)

• I = 0 C = +1 mesons from 1920 to 2410 MeV
• Partial wave analysis of pbar-p annihilation channels in flight with I=1, C=+1
• A partial wave analysis of pbar-p -> eta-eta-pizero

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