PS05 Hadronic Physics
Recent BaBar results in charmonium and charm spectroscopy
I.N.F.N., Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
Accepted: 9 March 2004
Published online: 31 March 2004
Recent results are presented on the study of the ηc and ηc(2S) resonance parameters and on the observation of two narrow states in the Ds spectrum, using the BaBar data set. The η c and ηc(2S) are produced in γγ 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 , are observed in continuum e+e– production, decaying to D+sπ0 and D+sπ0 γ respectively: their masses are measured and a study on the resonant structure of the D+sJ(2457) decay is reported. All results are preliminary (Except for the of D*+sJ(2317) mass determination).
PACS: PACS-13.66.Bc – PACS-14.40.Gx – PACS-14.40.Lb
© Società Italiana di Fisica, Springer-Verlag, 2004