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04 October 2022
 
  » arxiv » 1109.6817

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A partial wave analysis of pbar-p -> eta-eta-pizero
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 30 Sep 2011
AbstractA partial wave analysis of pbar-p -> eta-eta-pizero data from the Crystal Barrel experiment is made in terms of s-channel resonances. The decay channels a_0(980)-eta, f_0(1770)-pi and f_0(2105)-pi provide evidence for two I = 1 J^{PC} = 0^{-+} resonances. The first has mass M =2360 +- 25 MeV and width Gamma = 300^{+100}_{-50} MeV, and the second M =2070 pm 35 MeV, Gamma = 310^{+100}_{-50} MeV. There is also evidence for a J^{PC} = 2^{-+} state with M = 2005 +- 15 MeV and Gamma = 200 +- 40 MeV, decaying strongly to a_0(980)-pi.
Source arXiv, 1109.6817
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