Dynamics and decay of heavy-light hadrons

Recent signals for narrow hadrons containing heavy and light flavors are compared with quark model predictions for spectroscopy, strong decays, and radiative transitions. In particular, the production and identification of excited charmed and cs̄ states are examined with emphasis on elucidating the nature of 0⁺ and 1⁺ states. Roughly 200 strong decay amplitudes of D and Dₛ states up to 3.3 GeV are presented. Applications include determining flavor content in η mesons and the mixing angle in P and D wave states and probes of putative molecular states. We advocate searching for radially excited Dₛ* states in B decays.