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arXiv · 1109.6817

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
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Abstract

A 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.

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A. V. Anisovich, C. A. Baker, C. J. Batty, D. V. Bugg, V. A. Nikonov, A. V. Sarantsev, V. V. Sarantsev, B. S. Zou. 2011-09-30. A partial wave analysis of pbar-p -> eta-eta-pizero. https://doi.org/10.1016/s0370-2693(01)01018-8

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