We investigate four-body states with only charm quarks. Working in a large but finite oscillator basis, we present a net binding analysis to determine if the resulting states are stable against breakup into a pair of $c\overline{c}$ mesons. We find several close-lying bound states in the two models we examine.

• Received 5 November 2003

DOI:https://doi.org/10.1103/PhysRevD.70.014009