${{\mathit h}_{{{c}}}{(1P)}}$ WIDTH

INSPIRE   PDGID:
M144W
VALUE (MeV) CL% EVTS DOCUMENT ID TECN  COMMENT
$0.78$ ${}^{+0.27}_{-0.24}$ $\pm0.12$ 23k
ABLIKIM
2022AQ
 BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \pi}^{0}}$ hadrons; ${{\mathit \pi}^{0}}{{\mathit \gamma}}$( ${{\mathit \eta}_{{{c}}}}$)
• • We do not use the following data for averages, fits, limits, etc. • •
$0.70$ $\pm0.28$ $\pm0.22$ 832 1, 2
ABLIKIM
2012N
 BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \gamma}}$ hadrons
$\text{< 1.44}$ 90 3679 3
ABLIKIM
2010B
 BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \gamma}}{{\mathit \eta}_{{{c}}}}$
$\text{< 1}$ 13
ANDREOTTI
2005B
 E835 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}_{{{c}}}}{{\mathit \gamma}}$
$\text{< 1.1}$ 90 59
ARMSTRONG
1992D
 E760 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{0}}$
1  Superseded by ABLIKIM 2022AQ
2  With floating mass.
3  The central value is = $0.73$ $\pm0.45$ $\pm0.28$ MeV.
References