Hadron Spectroscopy, exotics and B_C⁺ physics at LHCb

The LHCb experiment is designed to study properties and decays of heavy flavored hadrons produced from pp collisions at the LHC. During Run 1, it has recorded the world's largest data sample of beauty and charm hadrons, enabling precision spectroscopy studies of such particles. Several important results obtained by LHCb, such as the discovery of the first pentaquark states and the first unambiguous determination of the Z_c (4430) ^- as an exotic state, have dramatically increased the interest in spectroscopy of heavy hadrons. An overview of the latest LHCb results on the subject, including the discovery of four strange exotic states decaying as X → J/ψϕ , is presented. LHCb has also made significant contributions to the field of B_C ⁺ physics, the lowest bound state of the heavy flavor ̅b and c quarks. A synopsis of the latest results is given. (paper)