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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:

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

$I^G(J^{PC})$ = $0^-(1^{- -})$

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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)

${{\mathit D}}{{\overline{\mathit D}}}$

($93^{+8}_{-9}$ ) $\%$

${{\mathit D}^{0}}{{\overline{\mathit D}}^{0}}$

($52^{+4}_{-5}$ ) $\%$

${{\mathit D}^{+}}{{\mathit D}^{-}}$

($41$ $\pm4$ ) $\%$

${{\mathit J / \psi}}{{\mathit X}}$

($5.0$ $\pm2.2$) $ \times 10^{-3}$

${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

($1.93$ $\pm0.28$) $ \times 10^{-3}$

${{\mathit J / \psi}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$

($8.0$ $\pm3.0$) $ \times 10^{-4}$

${{\mathit J / \psi}}{{\mathit \eta}}$

($8.7$ $\pm1.2$) $ \times 10^{-4}$

${{\mathit J / \psi}}{{\mathit \pi}^{0}}$

$<2.8$ $\times 10^{-4}$

${{\mathit e}^{+}}{{\mathit e}^{-}}$

($9.6$ $\pm0.7$) $ \times 10^{-6}$

▸ Decays to light hadrons

▸ Radiative decays

Constrained Fit information

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