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

INSPIRE   JSON PDGID: M053

${{\mathit \psi}{(3770)}}$ $I^G(J^{PC})$ = $0^-(1^{- -})$

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${{\mathit \psi}{(3770)}}$ MASS $3773.7$ $\pm0.7$ MeV (S = 2.3)

${\mathit m}_{{{\mathit \psi}{(3770)}}}-{\mathit m}_{{{\mathit \psi}{(2S)}}}$ $86.6$ $\pm0.7$ MeV (S = 2.0)

${{\mathit \psi}{(3770)}}$ WIDTH $27.2$ $\pm1.0$ MeV

${{\mathit \psi}{(3770)}}$ DECAY MODES

Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit D}}{{\overline{\mathit D}}}$ ($93^{+8}_{-9}$ ) $\%$ S=2.0  287   $\Gamma_{2}$ ${{\mathit D}^{0}}{{\overline{\mathit D}}^{0}}$ ($52^{+4}_{-5}$ ) $\%$ S=2.0  287   $\Gamma_{3}$ ${{\mathit D}^{+}}{{\mathit D}^{-}}$ ($41$ $\pm4$ ) $\%$ S=2.0  254   $\Gamma_{4}$ ${{\mathit J / \psi}}{{\mathit X}}$ ($5.0$ $\pm2.2$) $ \times 10^{-3}$     $\Gamma_{5}$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ($1.93$ $\pm0.28$) $ \times 10^{-3}$ 561   $\Gamma_{6}$ ${{\mathit J / \psi}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ ($8.0$ $\pm3.0$) $ \times 10^{-4}$ 565   $\Gamma_{7}$ ${{\mathit J / \psi}}{{\mathit \eta}}$ ($8.7$ $\pm1.2$) $ \times 10^{-4}$ 361   $\Gamma_{8}$ ${{\mathit J / \psi}}{{\mathit \pi}^{0}}$ $<2.8$ $\times 10^{-4}$ CL=90% 604   $\Gamma_{9}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ ($9.6$ $\pm0.7$) $ \times 10^{-6}$ S=1.3  1887   ▸  exp Decays to light hadrons $\Gamma_{10}$ ${{\mathit b}_{{{1}}}{(1235)}}{{\mathit \pi}}$ $<1.4$ $\times 10^{-5}$ CL=90% 1684   $\Gamma_{11}$ ${{\mathit \phi}}{{\mathit \eta}^{\,'}}$ $<2.3$ $\times 10^{-5}$ CL=90% 1607   $\Gamma_{12}$ ${{\mathit \omega}}{{\mathit \eta}^{\,'}}$ $<4$ $\times 10^{-4}$ CL=90% 1672   $\Gamma_{13}$ ${{\mathit \rho}^{0}}{{\mathit \eta}^{\,'}}$ $<6$ $\times 10^{-4}$ CL=90% 1674   $\Gamma_{14}$ ${{\mathit \phi}}{{\mathit \eta}}$ ($3.1$ $\pm0.7$) $ \times 10^{-4}$ 1703   $\Gamma_{15}$ ${{\mathit \omega}}{{\mathit \eta}}$ $<1.4$ $\times 10^{-5}$ CL=90% 1762   $\Gamma_{16}$ ${{\mathit \rho}^{0}}{{\mathit \eta}}$ $<5$ $\times 10^{-4}$ CL=90% 1764   $\Gamma_{17}$ ${{\mathit \phi}}{{\mathit \pi}^{0}}$ $<3$ $\times 10^{-5}$ CL=90% 1746   $\Gamma_{18}$ ${{\mathit \omega}}{{\mathit \pi}^{0}}$ $<6$ $\times 10^{-4}$ CL=90% 1803   $\Gamma_{19}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $<5$ $\times 10^{-6}$ CL=90% 1874   $\Gamma_{20}$ ${{\mathit \rho}}{{\mathit \pi}}$ $<5$ $\times 10^{-6}$ CL=90% 1805   $\Gamma_{21}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ not seen 1821   $\Gamma_{22}$ ${{\mathit K}^{*}{(892)}^{+}}{{\mathit K}^{-}}$ + c.c. $<1.4$ $\times 10^{-5}$ CL=90% 1745   $\Gamma_{23}$ ${{\mathit K}^{*}{(892)}^{0}}{{\overline{\mathit K}}^{0}}$ + c.c. $<1.2$ $\times 10^{-3}$ CL=90% 1745   $\Gamma_{24}$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ ($2.6^{+1.4}_{-1.6}$) $ \times 10^{-5}$ 1820   $\Gamma_{25}$ 2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) $<1.12$ $\times 10^{-3}$ CL=90% 1861   $\Gamma_{26}$ 2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit \pi}^{0}}$ $<1.06$ $\times 10^{-3}$ CL=90% 1844   $\Gamma_{27}$ 2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$) <5.85 $\%$ CL=90% 1821   $\Gamma_{28}$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<6.0$ $\times 10^{-4}$ CL=90% 1794   $\Gamma_{29}$ 3( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) $<9.1$ $\times 10^{-3}$ CL=90% 1820   $\Gamma_{30}$ 3( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit \pi}^{0}}$ <1.37 $\%$ CL=90% 1792   $\Gamma_{31}$ 3( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) 2 ${{\mathit \pi}^{0}}$ <11.74 $\%$ CL=90% 1760   $\Gamma_{32}$ ${{\mathit \eta}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<1.24$ $\times 10^{-3}$ CL=90% 1836   $\Gamma_{33}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$2 ${{\mathit \pi}^{0}}$ $<8.9$ $\times 10^{-3}$ CL=90% 1862   $\Gamma_{34}$ ${{\mathit \rho}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<6.9$ $\times 10^{-3}$ CL=90% 1796   $\Gamma_{35}$ ${{\mathit \eta}}$3 ${{\mathit \pi}}$ $<1.34$ $\times 10^{-3}$ CL=90% 1824   $\Gamma_{36}$ ${{\mathit \eta}}$2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) <2.43 $\%$ CL=90% 1804   $\Gamma_{37}$ ${{\mathit \eta}}{{\mathit \rho}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ <1.45 $\%$ CL=90% 1708   $\Gamma_{38}$ ${{\mathit \eta}^{\,'}}$3 ${{\mathit \pi}}$ $<2.44$ $\times 10^{-3}$ CL=90% 1741   $\Gamma_{39}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<9.0$ $\times 10^{-4}$ CL=90% 1773   $\Gamma_{40}$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<4.1$ $\times 10^{-4}$ CL=90% 1737   $\Gamma_{41}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$2 ${{\mathit \pi}^{0}}$ $<4.2$ $\times 10^{-3}$ CL=90% 1774   $\Gamma_{42}$ 4( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) <1.67 $\%$ CL=90% 1757   $\Gamma_{43}$ 4( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit \pi}^{0}}$ <3.06 $\%$ CL=90% 1720   $\Gamma_{44}$ ${{\mathit \phi}}{{\mathit f}_{{{0}}}{(980)}}$ $<4.5$ $\times 10^{-4}$ CL=90% 1597   $\Gamma_{45}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $<2.36$ $\times 10^{-3}$ CL=90% 1741   $\Gamma_{46}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \rho}^{0}}{{\mathit \pi}^{0}}$ $<8$ $\times 10^{-4}$ CL=90% 1624   $\Gamma_{47}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \rho}^{+}}{{\mathit \pi}^{-}}$ <1.46 $\%$ CL=90% 1623   $\Gamma_{48}$ ${{\mathit \omega}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $<3.4$ $\times 10^{-4}$ CL=90% 1664   $\Gamma_{49}$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $<3.8$ $\times 10^{-3}$ CL=90% 1723   $\Gamma_{50}$ ${{\mathit K}^{*0}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{0}}$ + c.c. <1.62 $\%$ CL=90% 1694   $\Gamma_{51}$ ${{\mathit K}^{*+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ + c.c. <3.23 $\%$ CL=90% 1693   $\Gamma_{52}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$2 ${{\mathit \pi}^{0}}$ <2.67 $\%$ CL=90% 1705   $\Gamma_{53}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) <1.03 $\%$ CL=90% 1702   $\Gamma_{54}$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit \pi}^{0}}$ <3.60 $\%$ CL=90% 1661   $\Gamma_{55}$ ${{\mathit \eta}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $<4.1$ $\times 10^{-4}$ CL=90% 1712   $\Gamma_{56}$ ${{\mathit \eta}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ <1.24 $\%$ CL=90% 1624   $\Gamma_{57}$ ${{\mathit \rho}^{0}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $<5.0$ $\times 10^{-3}$ CL=90% 1666   $\Gamma_{58}$ 2( ${{\mathit K}^{+}}{{\mathit K}^{-}}$) $<6.0$ $\times 10^{-4}$ CL=90% 1552   $\Gamma_{59}$ ${{\mathit \phi}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $<7.5$ $\times 10^{-4}$ CL=90% 1598   $\Gamma_{60}$ 2( ${{\mathit K}^{+}}{{\mathit K}^{-}}$) ${{\mathit \pi}^{0}}$ $<2.9$ $\times 10^{-4}$ CL=90% 1494   $\Gamma_{61}$ 2( ${{\mathit K}^{+}}{{\mathit K}^{-}}$) ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<3.2$ $\times 10^{-3}$ CL=90% 1426   $\Gamma_{62}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ $<3.2$ $\times 10^{-3}$ CL=90% 1799   $\Gamma_{63}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{0}}$ <1.33 $\%$ CL=90% 1773   $\Gamma_{64}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit \rho}^{+}}$ $<6.6$ $\times 10^{-3}$ CL=90% 1665   $\Gamma_{65}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}$2 ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<8.7$ $\times 10^{-3}$ CL=90% 1740   $\Gamma_{66}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \rho}^{0}}$ <1.6 $\%$ CL=90% 1621   $\Gamma_{67}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \eta}}$ <1.3 $\%$ CL=90% 1670   $\Gamma_{68}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}$2 ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ <4.18 $\%$ CL=90% 1703   $\Gamma_{69}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}$2 ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}}$ <4.8 $\%$ CL=90% 1570   $\Gamma_{70}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) <1.22 $\%$ CL=90% 1658   $\Gamma_{71}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{0}}$ <2.65 $\%$ CL=90% 1742   $\Gamma_{72}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ $<4.9$ $\times 10^{-3}$ CL=90% 1491   $\Gamma_{73}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{0}}$ <3.0 $\%$ CL=90% 1427   $\Gamma_{74}$ ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \eta}}$ <2.2 $\%$ CL=90% 1214   $\Gamma_{75}$ ${{\mathit K}^{*0}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ + c.c. $<9.7$ $\times 10^{-3}$ CL=90% 1722   $\Gamma_{76}$ ${{\mathit p}}{{\overline{\mathit p}}}$ not seen 1637   $\Gamma_{77}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{0}}$ $<4$ $\times 10^{-5}$ CL=90% 1595   $\Gamma_{78}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<5.8$ $\times 10^{-4}$ CL=90% 1544   $\Gamma_{79}$ ${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}$ $<1.2$ $\times 10^{-4}$ CL=90% 1522   $\Gamma_{80}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $<1.85$ $\times 10^{-3}$ CL=90% 1490   $\Gamma_{81}$ ${{\mathit \omega}}{{\mathit p}}{{\overline{\mathit p}}}$ $<2.9$ $\times 10^{-4}$ CL=90% 1310   $\Gamma_{82}$ ${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}{{\mathit \pi}^{0}}$ $<7$ $\times 10^{-5}$ CL=90% 1469   $\Gamma_{83}$ ${{\mathit p}}{{\overline{\mathit p}}}$2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) $<2.6$ $\times 10^{-3}$ CL=90% 1426   $\Gamma_{84}$ ${{\mathit \eta}}{{\mathit p}}{{\overline{\mathit p}}}$ $<5.4$ $\times 10^{-4}$ CL=90% 1431   $\Gamma_{85}$ ${{\mathit \eta}}{{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<3.3$ $\times 10^{-3}$ CL=90% 1284   $\Gamma_{86}$ ${{\mathit \rho}^{0}}{{\mathit p}}{{\overline{\mathit p}}}$ $<1.7$ $\times 10^{-3}$ CL=90% 1314   $\Gamma_{87}$ ${{\mathit p}}{{\overline{\mathit p}}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $<3.2$ $\times 10^{-4}$ CL=90% 1186   $\Gamma_{88}$ ${{\mathit \eta}}{{\mathit p}}{{\overline{\mathit p}}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $<6.9$ $\times 10^{-3}$ CL=90% 737   $\Gamma_{89}$ ${{\mathit \pi}^{0}}{{\mathit p}}{{\overline{\mathit p}}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $<1.2$ $\times 10^{-3}$ CL=90% 1094   $\Gamma_{90}$ ${{\mathit \phi}}{{\mathit p}}{{\overline{\mathit p}}}$ $<1.3$ $\times 10^{-4}$ CL=90% 1178   $\Gamma_{91}$ ${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<2.5$ $\times 10^{-4}$ CL=90% 1405   $\Gamma_{92}$ ${{\mathit \Lambda}}{{\overline{\mathit p}}}{{\mathit K}^{+}}$ $<2.8$ $\times 10^{-4}$ CL=90% 1387   $\Gamma_{93}$ ${{\mathit \Lambda}}{{\overline{\mathit p}}}{{\mathit K}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $<6.3$ $\times 10^{-4}$ CL=90% 1234   $\Gamma_{94}$ ${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}{{\mathit \eta}}$ $<1.9$ $\times 10^{-4}$ CL=90% 1263   $\Gamma_{95}$ ${{\mathit \Sigma}^{+}}{{\overline{\mathit \Sigma}}^{-}}$ $<1.0$ $\times 10^{-4}$ CL=90% 1465   $\Gamma_{96}$ ${{\mathit \Sigma}^{0}}{{\overline{\mathit \Sigma}}^{0}}$ $<4$ $\times 10^{-5}$ CL=90% 1462   $\Gamma_{97}$ ${{\mathit \Xi}^{0}}{{\overline{\mathit \Xi}}^{0}}$ $<3.4$ $\times 10^{-4}$ CL=90% 1353   $\Gamma_{98}$ ${{\mathit \Xi}^{-}}{{\overline{\mathit \Xi}}^{+}}$ ($1.4$ $\pm0.4$) $ \times 10^{-4}$ 1347   $\Gamma_{99}$ ${{\mathit \Lambda}}{{\overline{\mathit \Xi}}^{+}}{{\mathit K}^{-}}$ + c.c. $<1.0$ $\times 10^{-4}$ CL=90% 1185   $\Gamma_{100}$ ${{\mathit \Sigma}^{0}}{{\overline{\mathit \Xi}}^{+}}{{\mathit K}^{-}}$ + c.c. $<3.4$ $\times 10^{-4}$ CL=90% 1134   ▸  exp Radiative decays $\Gamma_{101}$ ${{\mathit \gamma}}{{\mathit \chi}_{{{c2}}}}$ $<6.4$ $\times 10^{-4}$ CL=90% 211   $\Gamma_{102}$ ${{\mathit \gamma}}{{\mathit \chi}_{{{c1}}}}$ ($2.49$ $\pm0.23$) $ \times 10^{-3}$ 254   $\Gamma_{103}$ ${{\mathit \gamma}}{{\mathit \chi}_{{{c0}}}}$ ($6.9$ $\pm0.6$) $ \times 10^{-3}$ 342   $\Gamma_{104}$ ${{\mathit \gamma}}{{\mathit \eta}_{{{c}}}}$ $<7$ $\times 10^{-4}$ CL=90% 707   $\Gamma_{105}$ ${{\mathit \gamma}}{{\mathit \eta}_{{{c}}}{(2S)}}$ $<9$ $\times 10^{-4}$ CL=90% 133   $\Gamma_{106}$ ${{\mathit \gamma}}{{\mathit \eta}^{\,'}}$ $<1.8$ $\times 10^{-4}$ CL=90% 1765   $\Gamma_{107}$ ${{\mathit \gamma}}{{\mathit \eta}}$ $<1.5$ $\times 10^{-4}$ CL=90% 1847   $\Gamma_{108}$ ${{\mathit \gamma}}{{\mathit \pi}^{0}}$ $<2$ $\times 10^{-4}$ CL=90% 1884

Constrained Fit information