pdgLive Home   >   ${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit c}}}$ MESONS (including possibly non-${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states)   >   ${{\mathit h}_{{{c}}}{(1P)}}$

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

INSPIRE   JSON PDGID: M144

${{\mathit h}_{{{c}}}{(1P)}}$ $I^G(J^{PC})$ = $0^-(1^{+ -})$

Quantum numbers are quark model prediction, ${}^{C} = $ established by ${{\mathit \eta}_{{{c}}}}{{\mathit \gamma}}$ decay.

Expand/Collapse All

${{\mathit h}_{{{c}}}{(1P)}}$ MASS $3525.37$ $\pm0.14$ MeV (S = 1.2)

${{\mathit h}_{{{c}}}{(1P)}}$ WIDTH $0.78$ $\pm0.28$ MeV

${{\mathit h}_{{{c}}}{(1P)}}$ DECAY MODES

Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{0}}$ $<5$ $\times 10^{-4}$ CL=90% 382   $\Gamma_{2}$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}}{{\mathit \pi}}$ $<9$ $\times 10^{-5}$ CL=90% 312   $\Gamma_{3}$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<9$ $\times 10^{-4}$ CL=90% 305   $\Gamma_{4}$ ${{\mathit p}}{{\overline{\mathit p}}}$ $<4$ $\times 10^{-5}$ CL=90% 1492   $\Gamma_{5}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{0}}$ $<8$ $\times 10^{-4}$ CL=90% 1447   $\Gamma_{6}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ($3.3$ $\pm0.6$) $ \times 10^{-3}$ 1390   $\Gamma_{7}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $<6$ $\times 10^{-4}$ CL=90% 1394   $\Gamma_{8}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ ($4.4$ $\pm1.3$) $ \times 10^{-3}$ 1331   $\Gamma_{9}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit \eta}}$ ($7.4$ $\pm2.2$) $ \times 10^{-4}$ 1264   $\Gamma_{10}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ ($1.57$ $\pm0.13$) $ \times 10^{-3}$ 1749   $\Gamma_{11}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}}$ $<5$ $\times 10^{-4}$ CL=90% 1709   $\Gamma_{12}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \eta}}$ ($8.3$ $\pm2.4$) $ \times 10^{-3}$ 1695   $\Gamma_{13}$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \eta}}$ ($7.2$ $\pm1.7$) $ \times 10^{-3}$ 1648   $\Gamma_{14}$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ ($9.4$ $\pm1.7$) $ \times 10^{-3}$ 1716   $\Gamma_{15}$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \eta}}$ $<6$ $\times 10^{-4}$ CL=90% 1674   $\Gamma_{16}$ 3 ${{\mathit \pi}^{+}}$3 ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ ($9.1$ $\pm1.5$) $ \times 10^{-3}$ 1661   $\Gamma_{17}$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \omega}}$ ($3.9$ $\pm1.0$) $ \times 10^{-3}$ 1627   $\Gamma_{18}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<7$ $\times 10^{-4}$ CL=90% 1640   $\Gamma_{19}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ ($3.8$ $\pm0.8$) $ \times 10^{-3}$ 1606   $\Gamma_{20}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}}$ $<2.7$ $\times 10^{-3}$ CL=90% 1480   $\Gamma_{21}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ ($3.8$ $\pm0.9$) $ \times 10^{-4}$ 1670   $\Gamma_{22}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit \eta}}$ $<2.4$ $\times 10^{-3}$ CL=90% 1532   $\Gamma_{23}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \eta}}$ ($3.6$ $\pm1.2$) $ \times 10^{-4}$ 1574   $\Gamma_{24}$ 2 ${{\mathit K}^{+}}$2 ${{\mathit K}^{-}}{{\mathit \pi}^{0}}$ $<2.8$ $\times 10^{-4}$ CL=90% 1339   $\Gamma_{25}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$ ($7.1$ $\pm1.9$) $ \times 10^{-4}$ 1668   $\Gamma_{26}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ($3.2$ $\pm1.0$) $ \times 10^{-3}$ 1604   ▸  exp Radiative decays $\Gamma_{27}$ ${{\mathit \gamma}}{{\mathit \eta}}$ ($3.8$ $\pm0.6$) $ \times 10^{-4}$ 1720   $\Gamma_{28}$ ${{\mathit \gamma}}{{\mathit \eta}^{\,'}{(958)}}$ ($1.41$ $\pm0.15$) $ \times 10^{-3}$ 1633   $\Gamma_{29}$ ${{\mathit \gamma}}{{\mathit \pi}^{0}}$ $<5$ $\times 10^{-5}$ 1760   $\Gamma_{30}$ ${{\mathit \gamma}}{{\mathit \eta}_{{{c}}}{(1S)}}$ ($60$ $\pm4$ ) $\%$ 500   $\Gamma_{31}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \eta}_{{{c}}}{(1S)}}$ ($3.5$ $\pm0.7$) $ \times 10^{-3}$ 500

Constrained Fit information