This state shows properties different from a conventional ${{\mathit q}}{{\overline{\mathit q}}}$ state. A candidate for an exotic structure. See the review on non-${{\mathit q}}{{\overline{\mathit q}}}$ states. Seen by AALTONEN 2009AH, ABAZOV 2014A, CHATRCHYAN 2014M, AAIJ 2017C in ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit \chi}_{{{c1}}}}{{\mathit K}^{+}}$, ${{\mathit \chi}_{{{c1}}}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}$, and by ABAZOV 2015M separately in both prompt (4.7 ${{\mathit \sigma}}$) and non-prompt (5.6 ${{\mathit \sigma}}$) production in ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{+}$ anything. Not seen by SHEN 2010 in ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}$ and ABLIKIM 2015 in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit J / \psi}}{{\mathit \phi}}$ at $\sqrt {s }$ = 4.23, 4.26, 4.36 GeV.