Properties of the X(3872)
G. Gomez-Ceballos
MIY

The 2003 discovery by the Belle collaboration of a new particle decaying to J/\psi \pi^+ \pi^- came as a surprise, since this particle fits rather poorly into the charmonium framework. We report on new measurements of production and decay properties of this particle from proton-antiproton collisions using data collected with CDF II at the Fermilab Tevatron.