Abstract
The 1 D 2 charmonium assignment for the X(3872) is considered, which is compatible with the 2−+ quantum numbers, as favoured by the BABAR Collaboration analysis presented recently for the π + π − π 0 J/ψ decay mode. It is demonstrated that established properties of the X(3872) are in a drastic conflict with the 1 D 2 c \(\bar c\) assignment. Furthermore, it is argued that a combined analysis of the data for different decay channels of the X, with the help of theoretical formulae which meet a number of constraints imposed by phenomenology, results in a suitable description of the experimental data for the X compatible with its quantum numbers 1++.
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Kalashnikova, Y.S., Nefediev, A.V. X(3872) as the 1 D 2 charmonium. Phys. Atom. Nuclei 76, 1533–1540 (2013). https://doi.org/10.1134/S106377881322002X
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DOI: https://doi.org/10.1134/S106377881322002X