${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit c}}}$ MESONS
(including possibly non-${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states)
INSPIRE   JSON PDGID:
M057

${{\mathit \chi}_{{{c2}}}{(1P)}}$

$I^G(J^{PC})$ = $0^+(2^{+ +})$ 
See the Review on ``Branching Ratios of ${{\mathit \psi}{(2S)}}$, ${{\mathit \chi}}_{c0,1,2}$ and ${{\mathit \eta}_{{{c}}}{(1S)}}$'' before the ${{\mathit \chi}_{{{c0}}}{(1P)}}$ Listings.
${{\mathit \chi}_{{{c2}}}{(1P)}}$ MASS   $3556.17 \pm0.07$ MeV 
 
${{\mathit \chi}_{{{c2}}}{(1P)}}$ WIDTH   $1.98 \pm0.09$ MeV (S = 1.1)
 
MULTIPOLE AMPLITUDE RATIOS IN RADIATIVE DECAYS ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{{c2}}}{(1P)}}$ and ${{\mathit \chi}_{{{c2}}}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit J / \psi}{(1S)}}$
$\mathit b_{2}/\mathit a_{2}$ Magnetic quadrupole transition amplitude ratio   $-0.11 \pm0.15$  
 
FOOTNOTES
Constrained Fit information