${{\boldsymbol a}_{{0}}{(1950)}}$ WIDTH INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$271$ $\pm22$ $\pm29$ 12k 1, 2
LEES
2016A
BABR ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \eta}_{{c}}}$(1 ${{\mathit S}}$) $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$265$ $\pm36$ $\pm110$ 8k 1
LEES
2016A
BABR ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \eta}_{{c}}}$(1 ${{\mathit S}}$) $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$274$ $\pm28$ $\pm30$ 4k 1
LEES
2016A
BABR ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \eta}_{{c}}}$(1 ${{\mathit S}}$) $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$
1  From a model-independent partial wave analysis fit to a relativistic Breit-Wigner function with a floating mass.
2  Weighted average of the ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}$ and ${{\mathit K}^{+}}{{\mathit K}^{-}}$ decay modes.
  References:
LEES 2016A
PR D93 012005 Measurement of the I=1/2 ${{\mathit K}}{{\mathit \pi}}$ $\mathit S$-Wave Amplitude from Dalitz Plot Analyses of ${{\mathit \eta}_{{c}}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$ in Two-Photon Interactions