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24 January 2022
 
  » arxiv » 1109.6433

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Study of pbar-p -> eta-eta-pizero-pizero in flight
A.V. Anisovich ; C.A. Baker. C.J. Batty ; D.V. Bugg ; V.A. Nikonov ; A.V. Sarantsev ; V.V. Sarantsev ; B.S. Zou ;
Date 29 Sep 2011
AbstractAn 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).
Source arXiv, 1109.6433
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