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

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

INSPIRE   JSON  (beta) PDGID:
M027W4
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 49 \pm4}$ OUR AVERAGE  Error includes scale factor of 2.0.  See the ideogram below.
$60.8$ $\pm1.2$ ${}^{+5.5}_{-12.0}$ 126K
ABLIKIM
2023M
 BES3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$
$51$ $\pm6$ 3651 1
NICHITIU
2002
OBLX 0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$42$ $\pm10$ $\pm9$ 20k
ADAMS
2001B
 B852 18 GeV ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit n}}$
$50$ $\pm4$
CICALO
1999
OBLX 0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{\pm}}{{\mathit K}_S^0}$ ${{\mathit \pi}^{\mp}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$48$ $\pm5$ 2
BERTIN
1997
OBLX 0.0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{\pm}}$( ${{\mathit K}^{0}}$) ${{\mathit \pi}^{\mp}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$50$ $\pm4$ 2
BERTIN
1995
OBLX 0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}{{\mathit \pi}}{{\mathit \pi}}$
$75$ $\pm9$
AUGUSTIN
1992
DM2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$
$91$ ${}^{+67}_{-31}$ ${}^{+15}_{-38}$ 3
BAI
1990C
 MRK3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$19$ $\pm7$ 3
RATH
1989
MPS 21.4 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$
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 , but ${{\mathit a}_{{{0}}}{(980)}}{{\mathit \pi}}{}^{}1{}^{++}$ cannot be excluded.

           ${{\mathit \eta}{(1405)}}$ width ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$ mode (${{\mathit a}_{{{0}}}{(980)}}{{\mathit \pi}}$ dominant) (MeV)
References