${{\mathit a}_{{{0}}}{(1950)}}$ MASS

INSPIRE   JSON  (beta) PDGID:
M227M
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$1931$ $\pm14$ $\pm22$ 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. • •
$1949$ $\pm32$ $\pm76$ 8k 1
LEES
2016A
 BABR ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \eta}_{{{c}}}}$(1 ${{\mathit S}}$) $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$1927$ $\pm15$ $\pm23$ 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 width.
2  Weighted average of the ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}$ and ${{\mathit K}^{+}}{{\mathit K}^{-}}$ decay modes.
References