Study of pbar-p -> eta-eta-pizero-pizero in flight

Details Study of pbar-p -> eta-eta-pizero-pizero in flight Study of pbar-p -> eta-eta-pizero-pizero in flight

2011-09-29

arxiv.org/abs/1109.6433v1

Phys. Lett. B 500 (2001) 222

Physics

High Energy Physics

High Energy Physics - Experiment

12 pages, 6 figures

Scientific paper

An analysis of data on pbar-p -> eta-eta-pizero-pizero is presented at pbar beam momenta 600 to 1940 MeV/c. There is evidence for an I = 1, J^PC = 2^-+ resonance in eta-eta-pizero with mass M = 1880 +- 20 MeV and width 255 +- 45 MeV, decaying strongly a2(1320)-eta; it is too strong to be explained as the high mass tail of \pi_2(1670) -> a2(1320)-eta. There is tentative evidence also for weak decays to f_0(1500)\pi. It makes a natural partner to the eta 2(1860).

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