Exotic hadrons in heavy ion collisions at LHCb

The study of exotic hadrons that may contain more than three valence quarks is a highly active area of experimental and theoretical research. However, many fundamental questions remain about the structure of exotics. Measurements of these states in heavy ion collisions, where they are subject to interactions with other particles, provides a new window on their properties. Leveraging high statistics datasets, tracking and PID at very low transverse momentum, and excellent vertexing capabilities, LHCb has unique experimental access to these exotic hadrons. We will present recent LHCb results on the production of the exotic χ(3872) in pPb collisions, and discuss comparisons with other exotic states, conventional quarkonia, and theoretical calculations.