by Mikhail Voloshin (Theoretical Physics Institute, University of Minnesota)
at GSI ( Theory Seminar Room (SB3 3.170a) )
I discuss the charmonium-like exotic so-called XYZ states. A number of these states have been found recently at electron-positron colliders and at LHC indicating existence of a rich spectrum of new hadronic systems. The `internal dynamics' is likely different in different exotic resonances, with some being possibly advantageous for studies in p¯p (and also p¯n) collisions. I summarize the current expectations for such studies and their possible implications for understanding the new multiquark structures.