${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$   Decay Mode Summary INSPIRE   PDGID:
M071.56
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{166}$ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $0.0979$ $\pm0.0020$ 261
Category: Radiative decays
The following data is related to the above value:
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$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit p}}{{\overline{\mathit p}}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{58}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{71}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{71}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}{{\mathit \eta}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{74}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit J / \psi}{(1S)}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{93}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit J / \psi}{(1S)}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{93}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{10}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit J / \psi}{(1S)}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{93}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{97}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{32}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{32}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \eta}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{36}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \eta}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{36}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{42}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{42}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{43}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{43}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ 2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}))/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{1}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{8}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{8}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{51}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{51}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \phi}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{56}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \phi}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{56}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{12}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\overline{\mathit p}}}{{\mathit K}_S^0}$ + c.c.$)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{83}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \Sigma}^{0}}{{\overline{\mathit p}}}{{\mathit K}^{+}}$ + c.c.$)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{84}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)$
$\Gamma_{166}/\Gamma_{167}$
$\lbrack{}\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}$+ $\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma_{\text{total}}$+ $\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c2}}{(1P)}}$ $)/\Gamma_{\text{total}}$
($\Gamma_{166}$+ $\Gamma_{167}$+ $\Gamma_{168})/\Gamma$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c2}}{(1P)}}$ $)$
$\Gamma_{166}/\Gamma_{168}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)$
$\Gamma_{211}/\Gamma_{166}$
$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit p}}{{\overline{\mathit p}}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{166}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{58}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}$