Observation of f0(1770) -> eta-eta in pbar-p -> eta-eta-pizero reactions from 600 to 1200 MeV/c
hep-ex
/ Authors
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
and 1 more author
/ 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.