pdgLive

${{\mathit \chi}_{{{c2}}}{(1P)}}$ WIDTH

INSPIRE JSON (beta) PDGID:

VALUE (MeV)

EVTS

DOCUMENT ID

TECN

COMMENT

$\bf{ 1.97 \pm0.09}$

OUR FIT Error includes scale factor of 1.1.

$\bf{ 2.00 \pm0.11}$

OUR AVERAGE

$2.10$ $\pm0.20$ $\pm0.02$

4.0k

LHCB

${{\mathit \chi}_{{{c2}}}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$

$1.915$ $\pm0.188$ $\pm0.013$

E835

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

$1.96$ $\pm0.17$ $\pm0.07$

585

E760

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

$2.6$ ${}^{+1.4}_{-1.0}$

50

SPEC

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

$2.8$ ${}^{+2.1}_{-2.0}$

CBAL

${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}$ X

¹	Recalculated by ANDREOTTI 2005A.

²	Errors correspond to 90$\%$ confidence level; authors give only width range.

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