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Published December 1, 2010 | Published
Journal Article Open

Observation of new resonances decaying to Dπ and D^*π in inclusive e^+e^- collisions near √s = 10.58  GeV


We present a study of the D^+π^-, D^0π^+, and D^(*+)π^- systems in inclusive e^+e^ -→ cc̅ interactions in a search for new excited D meson states. We use a data set, consisting of ~454  fb^(-1), collected at center-of-mass energies near 10.58 GeV by the BABAR detector at the SLAC PEP-II asymmetric-energy collider. We observe, for the first time, candidates for the radial excitations of the D^0, D^(*0), and D^(*+), as well as the L = 2 excited states of the D^0 and D^+, where L is the orbital angular momentum of the quarks.

Additional Information

© 2010 American Physical Society. Received 12 September 2010; published 1 December 2010. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MICIIN (Spain), and STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union), the A. P. Sloan Foundation (USA), and the Binational Science Foundation (USA-Israel).

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Published - PhysRevD_82_111101.pdf


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