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Open Access item Exclusive initial-state-radiation production of the D(D)over-bar, D*(D)over-bar and D*(D)over-bar* systems

Authors:Babar Collaboration
Azzolini, Virginia
López-March, Neus
Martínez-Vidal, Fernando
Milanés, Diego A.
Oyanguren, Arantza
Aubert, B.
Issue Date:5-May-2009
Publisher:American Physical Society
Citation:Physical Review - Section D - Particles and Fields 79 (9): 092001 (2009)
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 $Y(4260)\to D^* \bar D^*$.
Publisher version (URL):http://dx.doi.org/ 10.1103/PhysRevD.79.092001
Appears in Collections:(IFIC) Artículos

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