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Recent BaBar results in charmonium and charm spectroscopy

  • Enrico Robutti
PS05 Hadronic Physics

Abstract

Recent results are presented on the study of the η c and η c (2S) resonance parameters and on the observation of two narrow states in the D s spectrum, using the BaBar data set. The η c and η c (2S) are produced in γ γ interactions: a precision measurement of their mass and total width is reported, together with a study supporting the correct assignment of the η c (2S) quantum numbers. Two states \(D^{*+}_{sJ\ 2317}\), \(D_{sJ\ 2457}^+\) are observed in continuum e+e production, decaying to D+ s π0 and D+ s π0γ respectively: their masses are measured and a study on the resonant structure of the D+ sJ (2457) decay is reported. All results are preliminary1.

PACS: PACS-13.66.Bc – PACS-14.40.Gx – PACS-14.40.Lb

Footnotes
  1. 1.

    Except for the of D*+ sJ (2317) mass determination.

Keywords

Quantum Number Recent Result Precision Measurement Resonance Parameter Total Width 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag, Società Italiana di Fisica 2004

Authors and Affiliations

  • Enrico Robutti
    • 1
  1. 1.I.N.F.N., Sezione di Genova, Via Dodecaneso 33, 16146 GenovaItaly

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