${{\boldsymbol \eta}{(1405)}}$ MASS

${{\boldsymbol K}}{{\overline{\boldsymbol K}}}{{\boldsymbol \pi}}$ MODE ( ${{\boldsymbol a}_{{0}}{(980)}}{{\boldsymbol \pi}}$ or direct ${{\boldsymbol K}}{{\overline{\boldsymbol K}}}{{\boldsymbol \pi}}$ ) INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 1413.9 \pm1.7}$ OUR AVERAGE  Error includes scale factor of 1.1.
$1413$ $\pm14$ 3651 1
NICHITIU
2002
OBLX 0 $\bar p p \to K^+ K^- \pi^+\pi^-\pi^0$
$1416$ $\pm4$ $\pm2$ 20k
ADAMS
2001B
B852 18 GeV ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit n}}$
$1405$ $\pm5$ 2
CICALO
1999
OBLX 0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{\pm}}{{\mathit K}_S^0}$ ${{\mathit \pi}^{\mp}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1407$ $\pm5$ 2
BERTIN
1997
OBLX 0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{\pm}}$( ${{\mathit K}^{0}}$) ${{\mathit \pi}^{\mp}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1416$ $\pm2$ 2
BERTIN
1995
OBLX 0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}{{\mathit \pi}}{{\mathit \pi}}$
$1416$ $\pm8$ ${}^{+7}_{-5}$ 700 3
BAI
1990C
MRK3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$1413$ $\pm5$ 3
RATH
1989
MPS 21.4 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$1459$ $\pm5$ 4
AUGUSTIN
1992
DM2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$
1  Decaying dominantly directly to ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ .
2  Decaying into ( ${{\mathit K}}{{\overline{\mathit K}}}$ )$_{\mathit S}{{\mathit \pi}}$, ( ${{\mathit K}}{{\mathit \pi}}$ )$_{\mathit S}{{\overline{\mathit K}}}$, and ${{\mathit a}_{{0}}{(980)}}{{\mathit \pi}}$ .
3  From fit to the ${{\mathit a}_{{0}}{(980)}}{{\mathit \pi}}$ ${}^{}0{}^{-+}$ partial wave. Cannot rule out a ${{\mathit a}_{{0}}{(980)}}{{\mathit \pi}}$ ${}^{}1{}^{++}$ partial wave.
4  Excluded from averaging because averaging would be meaningless.
  References:
NICHITIU 2002
PL B545 261 Study of the ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ Final State in Antiproton Annihilation at Rest if Gaseous Hydrogen at NTP with the OBELIX Spectrometer
ADAMS 2001B
PL B516 264 Observation of Pseudoscalar and Axial Vector Resonances in ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit n}}$ at 18 GeV
CICALO 1999
PL B462 453 Evidence for Two Pseudoscalar States in the 1.4 to 1.5 GeV Mass Region
BERTIN 1997
PL B400 226 A Search for Axial Vectors in ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{\pm}}{{\mathit K}^{0}}$ $_{miss}$ ${{\mathit \pi}^{\mp}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Annihilations at Rest in Gaseous Hydrogen at NTP
BERTIN 1995
PL B361 187 $\mathit E/\iota $ Decays to ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$ in ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilation at Rest
AUGUSTIN 1992
PR D46 1951 Partial Wave Analysis of DM2 Data in the ${{\mathit \eta}{(1430)}}$ Energy Range
BAI 1990C
PRL 65 2507 Partial Wave Analysis of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\pm}}$
RATH 1989
PR D40 693 The ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$ System Produced in ${{\mathit \pi}^{-}}{{\mathit p}}$ Interactions at 21.4 ${\mathrm {GeV/}}\mathit c$