Abstract
Experiment E835 at the Fermilab Antiproton Accumulator studies the charmonium states directly formed in pp annihilations. In this paper we report the preliminary measurements of the mass, total width and partial width to γγ of the fundamental state ηc(1S0). Results on the two photons partial widths Γγγ(χ2) and Γγγ(χ0), and a measurement of αs at the quark charm mass are also reported.
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