# Exclusive Initial-State-Radiation Production of the $D \bar D$, $D \bar D^*$, and $D^* \bar D^*$, Systems

Abstract : We perform a study of the exclusive production of $D \bar D$, $D \bar D^*$, and $D^* \bar D^*$ in initial-state-radiation events, from $e^+ e^-$ annihilations at a center-of-mass energy near 10.58 GeV, to search for charmonium and possible new resonances. The data sample corresponds to an integrated luminosity of 384 $fb^{-1}$ and was recorded by the BaBar experiment at the PEP-II storage rings. The $D \bar D$, $D \bar D^*$, and $D^* \bar D^*$ mass spectra show clear evidence of several $\psi$ resonances. However, there is no evidence for $Y(4260) \to D \bar D^*$ or $Y(4260)\to D^* \bar D^*$.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00367140
Contributor : Swarna Bassava <>
Submitted on : Tuesday, March 10, 2009 - 2:45:02 PM
Last modification on : Wednesday, September 16, 2020 - 4:22:21 PM

### Citation

B. Aubert, Y. Karyotakis, J. P. Lees, V. Poireau, E. Prencipe, et al.. Exclusive Initial-State-Radiation Production of the $D \bar D$, $D \bar D^*$, and $D^* \bar D^*$, Systems. Physical Review D, American Physical Society, 2009, 79, pp.092001. ⟨10.1103/PhysRevD.79.092001⟩. ⟨in2p3-00367140⟩

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