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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 (beta) PDGID:

${{\mathit \psi}{(4040)}}$

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

${{\mathit \psi}{(4040)}}$ MASS

$4039 \pm1$ MeV

${{\mathit \psi}{(4040)}}$ WIDTH

${{\mathit \psi}{(4040)}}$ DECAY MODES

Due to the complexity of the ${{\mathit c}}{{\overline{\mathit c}}}$ threshold region, in this listing, ``seen'' (``not seen'') means that a cross section for the mode in question has been measured at effective $\sqrt {s }$ near this particle's central mass value, more (less) than 2${{\mathit \sigma}}$ above zero, without regard to any peaking behavior in $\sqrt {s }$ or absence thereof. See mode listing(s) for details and references.

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

$(1.07\pm{0.16})\times 10^{-5}$

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

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

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

${{\mathit D}^{*}}{{\overline{\mathit D}}}$ + c.c.

${{\mathit D}^{*}{(2007)}^{0}}{{\overline{\mathit D}}^{0}}$ + c.c.

${{\mathit D}^{*}{(2010)}^{+}}{{\mathit D}^{-}}$ + c.c.

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

${{\mathit D}^{*}{(2007)}^{0}}{{\overline{\mathit D}}^{*}{(2007)}^{0}}$

${{\mathit D}^{*}{(2010)}^{+}}{{\mathit D}^{*}{(2010)}^{-}}$

${{\mathit D}}{{\overline{\mathit D}}}{{\mathit \pi}}$ (excl. ${{\mathit D}^{*}}{{\overline{\mathit D}}}$ )

${{\mathit D}^{0}}{{\mathit D}^{-}}{{\mathit \pi}^{+}}$ +c.c. (excl. ${{\mathit D}^{*}{(2007)}^{0}}{{\overline{\mathit D}}^{0}}$ +c.c., ${{\mathit D}^{*}{(2010)}^{+}}{{\mathit D}^{-}}$ +c.c.)

${{\mathit D}}{{\overline{\mathit D}}^{*}}{{\mathit \pi}}$ (excl. ${{\mathit D}^{*}}{{\overline{\mathit D}}^{*}}$ )

${{\mathit D}^{0}}{{\overline{\mathit D}}^{*-}}{{\mathit \pi}^{+}}$ +c.c. (excl. ${{\mathit D}^{*}{(2010)}^{+}}{{\mathit D}^{*}{(2010)}^{-}}$ )

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

${{\mathit \pi}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$

${{\mathit J / \psi}{(1S)}}$ hadrons

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

$<4\times 10^{-3}$

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

$<2\times 10^{-3}$

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

$(5.2\pm{0.7})\times 10^{-3}$

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

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

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

$<2\times 10^{-3}$

${{\mathit \chi}_{{c1}}}{{\mathit \gamma}}$

$<3.4\times 10^{-3}$

${{\mathit \chi}_{{c2}}}{{\mathit \gamma}}$

$<5\times 10^{-3}$

${{\mathit \chi}_{{c1}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$

${{\mathit \chi}_{{c2}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$

${{\mathit h}_{{c}}{(1P)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$<3\times 10^{-3}$

${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$<3\times 10^{-3}$

${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$<2.9\times 10^{-4}$

${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}{{\mathit \pi}^{0}}$

$<9\times 10^{-5}$

${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}{{\mathit \eta}}$

$<3.0\times 10^{-4}$

${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}$

$<6\times 10^{-6}$

${{\mathit \Sigma}^{+}}{{\overline{\mathit \Sigma}}^{-}}$

$<1.3\times 10^{-4}$

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

$<7\times 10^{-5}$

${{\mathit \Xi}^{+}}{{\overline{\mathit \Xi}}^{-}}$

$<1.6\times 10^{-4}$

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

$<1.8\times 10^{-4}$

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

$(9\pm{6})\times 10^{-6}$

FOOTNOTES

Except where otherwise noted, content of the 2023 Review of Particle Physics is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license. The publication of the Review of Particle Physics is supported by US DOE, MEXT (Japan), INFN (Italy), JPS and CERN. Individual collaborators receive support for their PDG activities from their respective institutes or funding agencies. © 2023. See LBNL disclaimers.