A Search for $η'_c$ Production in Photon-Photon Fusion at LEP

Details A Search for $η'_c$ Production in Photon-Photon Fusion at LEP A Search for $η'_c$ Production in Photon-Photon Fusion at LEP

1998-10-14

arxiv.org/abs/hep-ex/9810030v1

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages

Scientific paper

A search for the production of the $\eta'_c$ meson, the first radial excitation of the ground state of charmonium $\eta_c$(2980), in the photon-photon fusion reaction at LEP has been performed using the data collected by the DELPHI detector during 1992-1996. No evidence of $\eta'_c$ production is found in the mass region 3520--3800 MeV/c^2. An upper limit for the ratio of the two-photon widths of the $\eta'_c$ and $\eta_c$ is obtained.

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