We present the first high-statistics study of the eta eta system over the mass range 1000-3000 MeV/c^2. The experiment was performed at the Fermilab Antiproton Accumulator, and the data sample consists of six-photon final states produced in antiproton-proton annihilations at Sqrt(s) in the range 2950-3620 MeV. We find evidence for three states with masses 1488 +- 10 MeV/c^2, 1748 +- 10 MeV/c^2 and 2104 +- 20 MeV/c^2 respectively.
Evidence for eta eta resonances in antiproton-proton annihilations at 2950 < Sqrt(s) < 3620 MeV
BETTONI, Diego;CALABRESE, Roberto;DALPIAZ, Pietro;FERRETTI, Paola;GIANOLI, Alberto;LUPPI, Eleonora;PETRUCCI, Ferruccio Carlo;SAVRIE', Mauro;
1993
Abstract
We present the first high-statistics study of the eta eta system over the mass range 1000-3000 MeV/c^2. The experiment was performed at the Fermilab Antiproton Accumulator, and the data sample consists of six-photon final states produced in antiproton-proton annihilations at Sqrt(s) in the range 2950-3620 MeV. We find evidence for three states with masses 1488 +- 10 MeV/c^2, 1748 +- 10 MeV/c^2 and 2104 +- 20 MeV/c^2 respectively.File in questo prodotto:
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