${{\mathit \eta}{(1405)}}$ WIDTH

${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$ MODE (unresolved)

INSPIRE   PDGID:
M027W6
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$45.9$ $\pm8.2$ 191 1, 2
ABLIKIM
2013M
 BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit K}}{{\mathit K}}{{\mathit \pi}}$
$48.9$ $\pm9.0$ $249$ $\pm35$ 1, 2
ABLIKIM
2008E
 BES2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit K}_S^0}$ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}$ + c.c.
$34.2$ $\pm18.5$ $62$ $\pm18$ 1, 2
ABLIKIM
2008E
 BES2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$
$93$ $\pm14$ 296 1
AUGUSTIN
1990
DM2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$
$105$ $\pm10$ 693 1
AUGUSTIN
1990
DM2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$62$ $\pm16$ 500 1
DUCH
1989
ASTE ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}{{\mathit \pi}}{{\mathit \pi}}$
$100$ $\pm11$ 170 1
RATH
1989
MPS 21.4 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}{{\mathit n}}$
$66$ $\pm2$ 8800 1
BIRMAN
1988
MPS 8 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\overline{\mathit K}}^{0}}{{\mathit \pi}^{-}}{{\mathit n}}$
$60$ $\pm10$ 620 1
REEVES
1986
SPEC 6.6 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit K}}{{\mathit K}}{{\mathit \pi}}$ X
$60$ $\pm10$ 1
CHUNG
1985
SPEC 8 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}{{\mathit n}}$
$55$ ${}^{+20}_{-30}$ 174 1
EDWARDS
1982E
 CBAL ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$
$50$ ${}^{+30}_{-20}$ 1
SCHARRE
1980
MRK2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$80$ $\pm10$ 800 1, 3
BAILLON
1967
HBC 0.0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}{{\mathit \pi}}{{\mathit \pi}}$
1  These experiments identify only one pseudoscalar in the $1400 - 1500$ range. Data could also refer to ${{\mathit \eta}{(1475)}}$.
2  Systematic uncertainty not evaluated.
3  From best fit to ${}^{}0{}^{-+}$ partial wave , 50$\%$ ${{\mathit K}^{*}{(892)}}{{\mathit K}}$ , 50$\%$ ${{\mathit a}_{{{0}}}{(980)}}{{\mathit \pi}}$.
References