${{\mathit f}_{{{1}}}{(1420)}}$ WIDTH

INSPIRE   PDGID:
M006W
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 56.7 \pm3.3}$ OUR AVERAGE  Error includes scale factor of 1.3.  See the ideogram below.
$95.9$ $\pm2.3$ ${}^{+13.6}_{-10.9}$ 126K
ABLIKIM
2023M
 BES3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$
$51$ $\pm14$ 711
ABDALLAH
2003H
 DLPH 91.2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}{+}$ ${{\mathit X}}$
$61$ $\pm8$ 3651
NICHITIU
2002
OBLX 0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$38$ $\pm9$ $\pm6$ 20k
ADAMS
2001B
 B852 18 GeV ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit n}}$
$58$ $\pm4$
BARBERIS
1997C
 OMEG 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$45$ $\pm10$
BERTIN
1997
OBLX 0.0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{\pm}}$( ${{\mathit K}^{0}}$) ${{\mathit \pi}^{\mp}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$58$ $\pm10$ 1
ARMSTRONG
1992E
 OMEG 85,300 ${{\mathit \pi}^{+}}{{\mathit p}}$, ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit p}}$ , ${{\mathit p}}{{\mathit p}}$( ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$)
$129$ $\pm41$ 2
AUGUSTIN
1992
DM2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$
$68$ ${}^{+29}_{-18}$ ${}^{+8}_{-9}$ 1100
BAI
1990C
 MRK3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$42$ $\pm22$ 17
BEHREND
1989
CELL ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$40$ ${}^{+17}_{-13}$ $\pm5$ $111$
BECKER
1987
MRK3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$
$35$ ${}^{+47}_{-20}$ 13
AIHARA
1986C
 TPC ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$
$47$ $\pm10$
CHAUVAT
1984
SPEC ISR 31.5 ${{\mathit p}}{{\mathit p}}$
$62$ $\pm14$
BROMBERG
1980
SPEC 100 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$ X
$40$ $\pm15$ 221
DIONISI
1980
HBC 4 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}{{\mathit n}}$
$60$ $\pm20$
DAHL
1967
HBC 1.6$-$4.2 ${{\mathit \pi}^{-}}{{\mathit p}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$68.7$ $\pm2.9$ 3
SOSA
1999
SPEC ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}_{{\mathrm {slow}}}$ (${{\mathit K}_S^0}$ ${{\mathit K}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit p}}_{{\mathrm {fast}}}$
$58.8$ $\pm3.3$ 3
SOSA
1999
SPEC ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}_{{\mathrm {slow}}}$ (${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$) ${{\mathit p}}_{{\mathrm {fast}}}$
$90$ $\pm25$
PROKOSHKIN
1997B
 GAM4 100 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$
$58$ $\pm8$ $389$
ARMSTRONG
1989
OMEG 300 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}{{\mathit p}}{{\mathit p}}$
$62$ $\pm5$ 1520
ARMSTRONG
1984
OMEG 85 ${{\mathit \pi}^{+}}{{\mathit p}}$, ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ( ${{\mathit \pi}^{+}}$ ,${{\mathit p}}$) ( ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$) ${{\mathit p}}$
$\sim$$50$
BITYUKOV
1984
SPEC 32 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit Y}}$
1  This result supersedes ARMSTRONG 1984, ARMSTRONG 1989.
2  From fit to the ${{\mathit K}^{*}{(892)}}{{\mathit K}}{}^{}1{}^{++}$ partial wave.
3  No systematic error given.

           ${{\mathit f}_{{{1}}}{(1420)}}$ WIDTH (MeV)
References