Abstract
Recent results on formation of η c (2980) meson at LEP 1 and LEP 2 energies and search for η b at LEP 2 are presented. η c (2980) is seen in different decay modes and its two-photon radiative decay width is measured.
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Chapkine, M. η c and η b in two-photon collisions. Eur Phys J C 33 (Suppl 1), s563–s565 (2004). https://doi.org/10.1140/epjcd/s2004-03-1684-9
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DOI: https://doi.org/10.1140/epjcd/s2004-03-1684-9