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arXiv · 1109.2086

Resonances formed by pbar-p and decaying into pizero-pizero-eta for masses 1960 to 2410 MeV

A. V. Anisovich·C. A. Baker·C. J. Batty·D. V. Bugg·C. Hodd·J. Kisiel·V. A. Nikonov·A. V. Sarantsev·V. V. Sarantsev·I. Scott·B. S. Zou
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Abstract

Data on pbar-b annihilation in flight into pizero-pizero-eta are presented for nine beam momenta 600 to 1940 MeV/c. The strongest four intermediate states are found to be f_2(1270)-eta, a_2(1320)-pi, sigma-eta and a_0(980)-pi. Partial wave analysis is performed mainly to look for resonances formed by pbar-p and decaying into pizero-pizero-eta through these intermediate states. There is evidence for the following s-channel I = 0 resonances : two 4^{++} resonances with mass and width (M,Gamma) at (2044, 208) MeV and (2320+-30, 220+-30) MeV; three 2^{++} resonances at (2020+-50, 200+-70) MeV, (2240+-40, 170+-50) MeV and (2370+-50, 320+-50) MeV; two 3^{++} resonances at (2000+-40, 250+-40) MeV and (2280+-30, 210+-30) MeV; a 1^{++} resonance at (2340+-40, 340+-40) MeV; and two 2^{-+} resonances at (2040+-40, 190+-40) MeV and (2300+-40, 270+-40) MeV.

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A. V. Anisovich, C. A. Baker, C. J. Batty, D. V. Bugg, C. Hodd, J. Kisiel, V. A. Nikonov, A. V. Sarantsev, V. V. Sarantsev, I. Scott, B. S. Zou. 2011-09-09. Resonances formed by pbar-p and decaying into pizero-pizero-eta for masses 1960 to 2410 MeV. https://doi.org/10.1016/s0375-9474(99)00137-2

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