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

INSPIRE search

${{\boldsymbol \psi}{(4415)}}$ $I^G(J^{PC})$ = $0^-(1^{- -})$

${{\mathit \psi}{(4415)}}$ MASS   $4421 \pm4$ MeV

${{\mathit \psi}{(4415)}}$ WIDTH   $62 \pm20$ MeV

${{\boldsymbol \psi}{(4415)}}$ 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.
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c) $\Gamma_{1}$ ${{\mathit D}}{{\overline{\mathit D}}}$   seen 1187   $\Gamma_{2}$ ${{\mathit D}^{0}}{{\overline{\mathit D}}^{0}}$   seen 1187   $\Gamma_{3}$ ${{\mathit D}^{+}}{{\mathit D}^{-}}$   seen 1179   $\Gamma_{4}$ ${{\mathit D}^{*}}{{\overline{\mathit D}}}$ + c.c.   seen 1063   $\Gamma_{5}$ ${{\mathit D}^{*}{(2007)}^{0}}{{\overline{\mathit D}}^{0}}$ + c.c.   seen 1067   $\Gamma_{6}$ ${{\mathit D}^{*}{(2010)}^{+}}{{\mathit D}^{-}}$ + c.c.   seen 1059   $\Gamma_{7}$ ${{\mathit D}^{*}}{{\overline{\mathit D}}^{*}}$   seen 919   $\Gamma_{8}$ ${{\mathit D}^{*}{(2007)}^{0}}{{\overline{\mathit D}}^{*}{(2007)}^{0}}$ + c.c.   seen 927   $\Gamma_{9}$ ${{\mathit D}^{*}{(2010)}^{+}}{{\mathit D}^{*}{(2010)}^{-}}$ + c.c.   seen 919   $\Gamma_{10}$ ${{\mathit D}^{0}}{{\mathit D}^{-}}{{\mathit \pi}^{+}}$ (excl. ${{\mathit D}^{*}{(2007)}^{0}}{{\overline{\mathit D}}^{0}}$ +c.c., ${{\mathit D}^{*}{(2010)}^{+}}{{\mathit D}^{-}}$ +c.c.   $<2.3\%$ CL=90%     $\Gamma_{11}$ ${{\mathit D}}{{\overline{\mathit D}}_{{2}}^{*}{(2460)}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit D}^{-}}{{\mathit \pi}^{+}}$ +c.c.   $(10\pm{4})\%$     $\Gamma_{12}$ ${{\mathit D}^{0}}{{\mathit D}^{*-}}{{\mathit \pi}^{+}}$ +c.c.   $<11\%$ CL=90% 926   $\Gamma_{13}$ ${{\mathit D}_{{1}}{(2420)}}{{\overline{\mathit D}}}$ + c.c.   possibly seen 537   $\Gamma_{14}$ ${{\mathit D}_{{s}}^{+}}{{\mathit D}_{{s}}^{-}}$   not seen 1006   $\Gamma_{15}$ ${{\mathit \omega}}{{\mathit \chi}_{{c2}}}$   possibly seen 330   $\Gamma_{16}$ ${{\mathit D}_{{s}}^{*+}}{{\mathit D}_{{s}}^{-}}$ +c.c.   seen     $\Gamma_{17}$ ${{\mathit D}_{{s}}^{*+}}{{\mathit D}_{{s}}^{*-}}$   not seen 652   $\Gamma_{18}$ ${{\mathit \psi}_{{2}}{(3823)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$   possibly seen 492   $\Gamma_{19}$ ${{\mathit \psi}{(3770)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$   possibly seen 541   $\Gamma_{20}$ ${{\mathit J / \psi}}{{\mathit \eta}}$   $<6\times 10^{-3}$ CL=90% 1022   $\Gamma_{21}$ ${{\mathit \chi}_{{c1}}}{{\mathit \gamma}}$   $<8\times 10^{-4}$ CL=90% 817   $\Gamma_{22}$ ${{\mathit \chi}_{{c2}}}{{\mathit \gamma}}$   $<4\times 10^{-3}$ CL=90% 780   $\Gamma_{23}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$   $(9.4\pm{3.2})\times 10^{-6}$ 2210   $\Gamma_{24}$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$   $(2.0\pm{1.0})\times 10^{-5}$ 2208
FOOTNOTES