Observation of f0(1770) -> eta-eta in pbar-p -> eta-eta-pizero reactions from 600 to 1200 MeV/c

A. V. Anisovich; C. A. Baker; C. J. Batty; D. V. Bugg; R. P. Haddock; C. Hodd; V. A. Nikonov; A. V. Sarantsev; V. V. Sarantsev; I. Scott; B. S. Zou

doi:10.1016/s0370-2693(99)00078-7

arXiv · 1109.4819

Observation of f0(1770) -> eta-eta in pbar-p -> eta-eta-pizero reactions from 600 to 1200 MeV/c

A. V. Anisovich·C. A. Baker·C. J. Batty·D. V. Bugg·R. P. Haddock·C. Hodd·V. A. Nikonov·A. V. Sarantsev·V. V. Sarantsev·I. Scott·B. S. Zou

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Abstract

We present data on pbar-p -> eta-eta-pizero at beam momenta of 600, 900, 1050, and 1200 MeV/c. At the higher three momenta, a signal is clearly visible due to pbar-p -> f_0(1770)-pizero, f_0(1770) -> eta-eta. It has mass 1770+-12 MeV and width 220+-40 MeV, where errors cover systematic uncertainties as well as statistics.

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A. V. Anisovich, C. A. Baker, C. J. Batty, D. V. Bugg, R. P. Haddock, C. Hodd, V. A. Nikonov, A. V. Sarantsev, V. V. Sarantsev, I. Scott, B. S. Zou. 2011-09-22. Observation of f0(1770) -> eta-eta in pbar-p -> eta-eta-pizero reactions from 600 to 1200 MeV/c. https://doi.org/10.1016/s0370-2693(99)00078-7

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