Spectroscopy at LHCb - exotic states

Abstract

The most recent LHCb results related to spectroscopy of exotic states are reported, including an update of the J/ψ p resonances where a new lighter narrow state has been discovered, evidence of charged Z − c → η c π − state, and observation of decays of B 0 (s) → J/ψ pp, which is useful for exotic state searches.