Heavy-Boson Production inp¯pMultipion Annihilation at 6.4GeVc

Production of heavy bosons is studied in $\overline{p}p$ six-prong annihilations at 6.94 $\frac{\mathrm{GeV}}{c}$. Evidence is presented for the existence of a heavy boson with a mass of 3.035 GeV and a full width of 0.200 GeV decaying into four and six pions. The possible existence of another boson at 3.4 GeV is also discussed.