${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit c}}}$ MESONS
(including possibly non-${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states)
INSPIRE   JSON PDGID:
M059

${{\mathit \eta}_{{{c}}}{(2S)}}$

$I^G(J^{PC})$ = $0^+(0^{- +})$ 
Quantum numbers are quark model predictions.
${{\mathit \eta}_{{{c}}}{(2S)}}$ MASS   $3637.7 \pm0.9$ MeV (S = 1.2)
 
${{\mathit \eta}_{{{c}}}{(2S)}}$ WIDTH   $11.8 \pm1.6$ MeV 
 
$\Gamma_{1}$ hadrons   seen  
 
$\Gamma_{2}$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$   $(1.9\pm{1.2})\%$ 1729
 
$\Gamma_{3}$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \eta}}$   $(5\pm{4})\times 10^{-3}$ 1637
 
$\Gamma_{4}$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}$   $<2.1\%$ CL=90% 1792
 
$\Gamma_{5}$ ${{\mathit \rho}^{0}}{{\mathit \rho}^{0}}$   $<1.9\times 10^{-3}$ CL=90% 1645
 
$\Gamma_{6}$ 3 ${{\mathit \pi}^{+}}$3 ${{\mathit \pi}^{-}}$   $(1.3\pm{0.9})\%$ 1749
 
$\Gamma_{7}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$   $<1.4\%$ CL=90% 1700
 
$\Gamma_{8}$ ${{\mathit K}^{*0}}{{\overline{\mathit K}}^{*0}}$   $<2.9\times 10^{-3}$ CL=90% 1585
 
$\Gamma_{9}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$   $(1.4\pm{1.0})\%$ 1668
 
$\Gamma_{10}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}$   $<1.4\%$ CL=90% 1627
 
$\Gamma_{11}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}$2 ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ + c.c.   $(1.0\pm{0.8})\%$ 1666
 
$\Gamma_{12}$ 2 ${{\mathit K}^{+}}$2 ${{\mathit K}^{-}}$   $<1.3\times 10^{-3}$ CL=90% 1470
 
$\Gamma_{13}$ ${{\mathit \phi}}{{\mathit \phi}}$   $<1.1\times 10^{-3}$ CL=90% 1506
 
$\Gamma_{14}$ ${{\mathit p}}{{\overline{\mathit p}}}$   $<2.0\times 10^{-3}$ CL=90% 1558
 
$\Gamma_{15}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$   seen 1461
 
$\Gamma_{16}$ ${{\mathit \gamma}}{{\mathit \gamma}}$   $(1.8\pm{1.2})\times 10^{-4}$ 1819
 
$\Gamma_{17}$ ${{\mathit \gamma}}{{\mathit J / \psi}{(1S)}}$   $<1.4\%$ CL=90% 501
 
$\Gamma_{18}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}}$   $(4.3\pm{3.2})\times 10^{-3}$ 1766
 
$\Gamma_{19}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}^{\,'}}$   $(2.6\pm{1.9})\times 10^{-3}$ 1680
 
$\Gamma_{20}$ ${{\mathit K}_{{{2}}}^{*}{(1430)}}{{\overline{\mathit K}}}$ + c.c.   seen 1493
 
$\Gamma_{21}$ ${{\mathit K}_{{{0}}}^{*}{(1950)}}{{\overline{\mathit K}}}$ + c.c.   seen 1231
 
$\Gamma_{22}$ ${{\mathit a}_{{{0}}}{(1710)}}{{\mathit \pi}}$   seen 1412
 
$\Gamma_{23}$ ${{\mathit a}_{{{0}}}{(1450)}}{{\mathit \pi}}$   seen 1531
 
$\Gamma_{24}$ ${{\mathit a}_{{{2}}}{(1700)}}{{\mathit \pi}}$   seen 1415
 
$\Gamma_{25}$ ${{\mathit K}_{{{0}}}^{*}{(2600)}}{{\overline{\mathit K}}}$ + c.c.   seen  
 
$\Gamma_{26}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}_{{{c}}}{(1S)}}$   $<25\%$ CL=90% 537
 
FOOTNOTES