pdgLive

CONTACT US

CITATION

MIRRORS

Email:

Mailing Address:

Were you looking to order PDG products?

${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ Decay Mode Summary INSPIRE PDGID:

M071.58

Category:

Radiative decays

The following data is related to the above value:

▸ expand all datablocks

$\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\mathit p}}{{\overline{\mathit p}}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$

$\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{56}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}{\times }\Gamma_{167}/\Gamma_{12}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}$ $)/\Gamma_{\text{total}}$

$\Gamma_{167}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{69}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}$

$\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$

$\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{69}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}{\times }\Gamma_{167}/\Gamma_{12}$

$\Gamma_{167}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{72}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit J / \psi}{(1S)}}$ $)/\Gamma_{\text{total}}$

$\Gamma_{167}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{93}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}$

$\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit J / \psi}{(1S)}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)$

$\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{93}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}{\times }\Gamma_{167}/\Gamma_{10}$

$\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{93}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}{\times }\Gamma_{167}/\Gamma_{12}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\overline{\mathit K}}^{0}}{{\mathit K}^{+}}{{\mathit \pi}^{-}}$ + c.c.$)/\Gamma_{\text{total}}$

$\Gamma_{167}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{19}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}$

$\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\overline{\mathit K}}^{0}}{{\mathit K}^{+}}{{\mathit \pi}^{-}}$ + c.c.$)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$

$\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{19}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}{\times }\Gamma_{167}/\Gamma_{12}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $)/\Gamma_{\text{total}}$

$\Gamma_{167}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{46}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}$

$\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$

$\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{46}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}{\times }\Gamma_{167}/\Gamma_{12}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\mathit p}}{{\overline{\mathit p}}}$ $)/\Gamma_{\text{total}}$

$\Gamma_{167}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{56}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\mathit \Sigma}^{+}}{{\overline{\mathit p}}}{{\mathit K}_S^0}$ + c.c.$)/\Gamma_{\text{total}}$

$\Gamma_{167}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{81}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit \chi}_{{c1}}{(1P)}}$ $\rightarrow$ ${{\mathit \Sigma}^{0}}{{\overline{\mathit p}}}{{\mathit K}^{+}}$ + c.c.$)/\Gamma_{\text{total}}$

$\Gamma_{167}/\Gamma{\times }\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}_{82}/\Gamma^{{{\mathit \chi}_{{c1}}{(1P)}}}$

$\Gamma($ ${{\mathit \chi}_{{c2}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit J / \psi}{(1S)}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c2}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)$

$\Gamma^{{{\mathit \chi}_{{c2}}{(1P)}}}_{93}/\Gamma^{{{\mathit \chi}_{{c2}}{(1P)}}}{\times }\Gamma_{168}/\Gamma_{10}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)/\Gamma_{\text{total}}$

$\Gamma_{10}/\Gamma$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)$

$\Gamma_{7}/\Gamma_{10}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)$

$\Gamma_{8}/\Gamma_{10}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ neutrals$)/\Gamma_{\text{total}}$

$\Gamma_{11}/\Gamma$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)$

$\Gamma_{12}/\Gamma_{10}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ neutrals$)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$

$\Gamma_{11}/\Gamma_{12}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)$

$\Gamma_{13}/\Gamma_{10}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \eta}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)$

$\Gamma_{14}/\Gamma_{10}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{0}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)$

$\Gamma_{15}/\Gamma_{10}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma_{\text{total}}$

$\Gamma_{167}/\Gamma$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)$

$\Gamma_{166}/\Gamma_{167}$

$\lbrack{}\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma_{\text{total}}$+ $\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma_{\text{total}}$+ $\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c2}}{(1P)}}$ $)/\Gamma_{\text{total}}$

($\Gamma_{166}$+ $\Gamma_{167}$+ $\Gamma_{168})/\Gamma$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c2}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)$

$\Gamma_{168}/\Gamma_{167}$

$\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$ $)$

$\Gamma_{212}/\Gamma_{167}$

$\Gamma($ ${{\mathit \chi}_{{c0}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit J / \psi}{(1S)}}$ $)/\Gamma_{\text{total}}{\times }\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$ $)/\Gamma($ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ anything$)$

$\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}_{93}/\Gamma^{{{\mathit \chi}_{{c0}}{(1P)}}}{\times }\Gamma_{166}/\Gamma_{10}$

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.

Mode ^(*)

Fraction ($\Gamma_i$ / $\Gamma$)

Scale Factor/
Conf. Level

P(MeV/c)

$\Gamma_{167}$

${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$

$0.0975$ $\pm0.0024$