We present a study of the D⊃+π⊃-, D0π⊃+, and D⊃*⊃+π⊃- systems in inclusive e⊃+e⊃-→cc̄ interactions in a search for new excited D meson states. We use a data set, consisting of ∼454fb⊃-1, collected at center-of-mass energies near 10.58 GeV by the B?>A?>B?>AR?> detector at the SLAC PEP-II asymmetric-energy collider. We observe, for the first time, candidates for the radial excitations of the D0, D⊃*0, and D⊃*⊃+, as well as the L=2 excited states of the D0 and D⊃+, where L is the orbital angular momentum of the quarks.
Sanchez, P., Lees, J., Poireau, V., Prencipe, E., Tisserand, V., Tico, J., et al. (2010). Observation of new resonances decaying to Dπ and D⊃*π in inclusive e⊃+e⊃- collisions near √s=10.58GeV. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 82(11) [10.1103/PhysRevD.82.111101].