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

Preprint

27 September 2011

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.1109.5817

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.

Keywords

TENSOR POLARISATIONS
OMEGA PIZERO
OMEGA ETA
ETA DATA
MESONS
PIZERO
PBAR

All Related Versions

Version 1, 2011-09-27, ArXiv
Published version: Physics Letters B, 542 (1-2), 19.

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