Comment on the X(3915) nonstandard hadron candidate


Abstract in English

I review the experimental evidence for the $X(3915)$, the candidate nonstandard meson associated with $omega Jpsi$ resonance-like peaks in $Brightarrow Komega Jpsi$ and $gammagammarightarrowomega Jpsi$ near $M(omega Jpsi)=3920$~MeV, and address the conjecture that it can be identified as the $chi_{c2}^prime$, the radial excitation of the $chi_{c2}$ charmonium state. Since the partial decay width for $Brightarrow K X(3915)$ is at least an order-of-magnitude larger than that for $Brightarrow Kchi_{c2}$, its assignment as the $chi_{c2}^prime$ is dubious.

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