Spectroscopy in ep collisions at HERA Original Research Article

Recent spectroscopy studies performed in high energy ep collisions by the H1 and ZEUS Collaborations are described. The status of the searches for the strange pentaquark, the θ+, is presented as well as results on searches for further exotic states such as the Σ−−. The evidence for the observation of a pentaquark state containing the charmed quark, the θc, is discussed and the result is given on searches for glueball candidates at HERA.