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

INSPIRE   PDGID:
M057W
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 1.97 \pm0.09}$ OUR FIT
$\bf{ 2.00 \pm0.11}$ OUR AVERAGE
$2.10$ $\pm0.20$ $\pm0.02$ 4.0k
AAIJ
2017BI
 LHCB ${{\mathit \chi}_{{c2}}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
$1.915$ $\pm0.188$ $\pm0.013$
ANDREOTTI
2005A
 E835 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \gamma}}$
$1.96$ $\pm0.17$ $\pm0.07$ 585 1
ARMSTRONG
1992
E760 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \gamma}}$
$2.6$ ${}^{+1.4}_{-1.0}$ 50
BAGLIN
1986B
 SPEC ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ X
$2.8$ ${}^{+2.1}_{-2.0}$ 2
GAISER
1986
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.
References:
AAIJ 2017BI
PRL 119 221801 ${{\mathit \chi}_{{c1}}}$ and ${{\mathit \chi}_{{c2}}}$ Resonance Parameters with the Decays ${{\mathit \chi}_{{{c1,c2}}}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
ANDREOTTI 2005A
NP B717 34 Measurement of the Resonance Parameters of the ${{\mathit \chi}_{{1}}}(1{}^{3}P_{1}$) and ${{\mathit \chi}_{{2}}}(1{}^{3}P_{2}$) States of Charmonium Formed in Antiproton-Proton Annihilations
ARMSTRONG 1992
NP B373 35 Study of the ${{\mathit \chi}_{{1}}}$ and ${{\mathit \chi}_{{2}}}$ Charmonium States Formed in ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilations
Also
PRL 68 1468 Precision Measurements of Charmonium States Formed in ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilation
BAGLIN 1986B
PL B172 455 Formation of the ${{\mathit \chi}_{{1}}}$ and ${{\mathit \chi}_{{2}}}$ Charmonium Resonances in Antiproton Proton Annihilation and Measurement of their Masses and Total Width
GAISER 1986
PR D34 711 Charmonium Spectroscopy from Inclusive ${{\mathit \psi}^{\,'}}$ and ${{\mathit J / \psi}}$ Radiative Decays
see fit info