Observation of the B Meson in the Reaction p¯+pω0+π++π

Abstract
The B meson, decaying into ω0+π±, has been observed in p¯p annihilations at rest in the reaction p¯+pω0+π++π. The mass and width of the B meson as observed in this reaction are M=1200±20 MeV and Γ=100±30 MeV.