Keith Ulmer (University of Colorado at Boulder (US))
CMS has searched for exotic charmonium states in the data sample collected in proton-proton collisions at 7 TeV in 2011. The X(3872) state is reconstructed in the J/psi pi+ pi- decay channel and the production cross-section is computed by determining the ratio to psi(2S) production in the same decay channel. For the first time, prompt and non-prompt contributions to the X(3872) cross section are disentangled by looking at secondary vertices. Furthermore, we also report on searches for other exotic quarkonium states.
Kai Yi (University of Iowa (US))