${\boldsymbol {\boldsymbol c}}$ ${\boldsymbol {\overline{\boldsymbol c}}}$ MESONS (including possibly non- ${\boldsymbol {\boldsymbol q}}$ ${\boldsymbol {\overline{\boldsymbol q}}}$ states)

See related reviews:
Charmonium System
Branching Ratios of ${{\mathit \psi}{(2S)}}$ and ${{\mathit \chi}_{{c0}}}_{,1,2}$
Spectroscopy of Mesons Containing Two Heavy Quarks
• ${{\mathit \eta}_{{c}}{(1S)}}$
$0^+(0^{- +})$
• ${{\mathit J / \psi}{(1S)}}$
$0^-(1^{- -})$
• ${{\mathit \chi}_{{c0}}{(1P)}}$
$0^+(0^{+ +})$
• ${{\mathit \chi}_{{c1}}{(1P)}}$
$0^+(1^{+ +})$
• ${{\mathit h}_{{c}}{(1P)}}$
$0^-(1^{+ -})$
• ${{\mathit \chi}_{{c2}}{(1P)}}$
$0^+(2^{+ +})$
• ${{\mathit \eta}_{{c}}{(2S)}}$
$0^+(0^{- +})$
• ${{\mathit \psi}{(2S)}}$
$0^-(1^{- -})$
• ${{\mathit \psi}{(3770)}}$
$0^-(1^{- -})$
• ${{\mathit \psi}_{{2}}{(3823)}}$
was ${{\mathit \psi}{(3823)}}$, ${{\mathit X}{(3823)}}$ 		$0^-(2^{- -})$
${{\mathit \chi}_{{c0}}{(3860)}}$
$0^+(0^{+ +})$
• ${{\mathit \chi}_{{c1}}{(3872)}}$
aka ${{\mathit X}{(3872)}}$ 		$0^+(1^{+ +})$
• ${{\mathit Z}_{{c}}{(3900)}}$
was ${{\mathit X}{(3900)}}$ 		$1^+(1^{+ -})$
• ${{\mathit X}{(3915)}}$
was ${{\mathit \chi}_{{c0}}{(3915)}}$ 		$0^+(0 $
or $ 2^{+ +})$
• ${{\mathit \chi}_{{c2}}{(3930)}}$
was ${{\mathit \chi}_{{c2}}{(2P)}}$ 		$0^+(2^{+ +})$
${{\mathit X}{(3940)}}$
$?^?(?^{? ?})$
• ${{\mathit X}{(4020)}}$
$1^+(?^{? -})$
• ${{\mathit \psi}{(4040)}}$
$0^-(1^{- -})$
${{\mathit X}{(4050)}^{\pm}}$
$1^-(?^{? +})$
${{\mathit X}{(4055)}^{\pm}}$
$1^+(?^{? -})$
${{\mathit X}{(4100)}^{\pm}}$
$1^-(?^{? ?})$
• ${{\mathit \chi}_{{c1}}{(4140)}}$
was ${{\mathit X}{(4140)}}$ 		$0^+(1^{+ +})$
• ${{\mathit \psi}{(4160)}}$
$0^-(1^{- -})$
${{\mathit X}{(4160)}}$
$?^?(?^{? ?})$
${{\mathit Z}_{{c}}{(4200)}}$
was ${{\mathit X}{(4200)}^{\pm}}$ 		$1^+(1^{+ -})$
${{\mathit \psi}{(4230)}}$
was ${{\mathit X}{(4230)}}$ 		$0^-(1^{- -})$
${{\mathit R}_{{c0}}{(4240)}}$
was ${{\mathit X}{(4240)}^{\pm}}$ 		$1^+(0^{- -})$
${{\mathit X}{(4250)}^{\pm}}$
$1^-(?^{? +})$
• ${{\mathit \psi}{(4260)}}$
aka ${{\mathit Y}{(4260)}}$; was ${{\mathit X}{(4260)}}$ 		$0^-(1^{- -})$
• ${{\mathit \chi}_{{c1}}{(4274)}}$
was ${{\mathit X}{(4274)}}$ 		$0^+(1^{+ +})$
${{\mathit X}{(4350)}}$
$0^+(?^{? +})$
• ${{\mathit \psi}{(4360)}}$
aka ${{\mathit Y}{(4360)}}$; was ${{\mathit X}{(4360)}}$ 		$0^-(1^{- -})$
${{\mathit \psi}{(4390)}}$
was ${{\mathit X}{(4390)}}$ 		$0^-(1^{- -})$
• ${{\mathit \psi}{(4415)}}$
$0^-(1^{- -})$
• ${{\mathit Z}_{{c}}{(4430)}}$
was ${{\mathit X}{(4430)}^{\pm}}$ 		$1^+(1^{+ -})$
${{\mathit \chi}_{{c0}}{(4500)}}$
was ${{\mathit X}{(4500)}}$ 		$0^+(0^{+ +})$
• ${{\mathit \psi}{(4660)}}$
aka ${{\mathit Y}{(4660)}}$; was ${{\mathit X}{(4660)}}$ 		$0^-(1^{- -})$
${{\mathit \chi}_{{c0}}{(4700)}}$
was ${{\mathit X}{(4700)}}$ 		$0^+(0^{+ +})$
 
•   Indicates established particles.