pdgLive

${{\mathit \chi}_{{{c0}}}{(1P)}}$ WIDTH

VALUE (MeV)

EVTS

DOCUMENT ID

TECN

COMMENT

$\bf{ 10.7 \pm0.6}$

OUR FIT Error includes scale factor of 1.1.

$\bf{ 10.5 \pm0.8}$

OUR AVERAGE Error includes scale factor of 1.1.

$10.6$ $\pm1.9$ $\pm2.6$

5.4k

BELL

${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \chi}_{{{c0}}}}$ $\rightarrow$ hadrons

$12.6$ ${}^{+1.5}_{-1.6}$ ${}^{+0.9}_{-1.1}$

BES2

${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{{c0}}}}$

$8.6$ ${}^{+1.7}_{-1.3}$ $\pm0.1$

E835

${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \chi}_{{{c0}}}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$

$9.7$ $\pm1.0$

392

E835

${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \chi}_{{{c0}}}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \gamma}}$

$16.6$ ${}^{+5.2}_{-3.7}$ $\pm0.1$

E835

${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \gamma}}$

$14.3$ $\pm2.0$ $\pm3.0$

BES

${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$13.5$ $\pm3.3$ $\pm4.2$

CBAL

${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}$ X, ${{\mathit \gamma}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$

• • We do not use the following data for averages, fits, limits, etc. • •

$13.2$ $\pm2.1$

266

BELL

${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$

¹	Recalculated by ANDREOTTI 2005A.

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