Properties incompatible with a ${{\mathit q}}{{\overline{\mathit q}}}$ structure (exotic state). See the review on non-${{\mathit q}}{{\overline{\mathit q}}}$ states. Observed by MIZUK 2008 in the ${{\mathit \pi}^{+}}{{\mathit \chi}_{{{c1}}}{(1P)}}$ invariant mass distribution in ${{\overline{\mathit B}}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \chi}_{{{c1}}}{(1P)}}$ decays. Not seen by LEES 2012B in this same mode after accounting for ${{\mathit K}}{{\mathit \pi}}$ resonant mass and angular structure.