#### PRODUCED BY PION BEAM

VALUE (MeV) DOCUMENT ID TECN  COMMENT
 $\bf{ 86.9 {}^{+2.3}_{-2.1}}$ OUR AVERAGE  Error includes scale factor of 1.4. See the ideogram below.
• • We do not use the following data for averages, fits, limits, etc. • •
$102$ $\pm42$
 2003
SPEC 40.0 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {C}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ X
$108$ ${}^{+5}_{-2}$ 1
 1986
MPS 22 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$
$69$ ${}^{+22}_{-16}$ 2
 1981
ASPK 6 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$
$137$ ${}^{+23}_{-21}$
 1981
ASPK 18.4 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$
$150$ ${}^{+83}_{-50}$
 1980
ASPK 17 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ polarized $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$
$165$ $\pm42$ 3
 1979
OMEG 12$-$15 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$
$92$ ${}^{+39}_{-22}$ 4
 1979
STRC 7 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$
 1 From a partial-wave analysis of data using a K-matrix formalism with 5 poles.
 2 CHABAUD 1981 is a reanalysis of PAWLICKI 1977 data.
 3 From an amplitude analysis where the ${{\mathit f}_{{2}}^{\,'}{(1525)}}$ width and elasticity are in complete disagreement with the values obtained from ${{\mathit K}}{{\overline{\mathit K}}}$ channel, making the solution dubious.
 4 From a fit to the ${{\mathit D}}$ with ${{\mathit f}_{{2}}{(1270)}}-{{\mathit f}_{{2}}^{\,'}{(1525)}}$ interference. Mass fixed at 1516 MeV.

${{\mathit f}_{{2}}^{\,'}{(1525)}}$ WIDTH (MeV)
References:
 TIKHOMIROV 2003
PAN 66 828 Resonances in the ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ System Produced in Collisions of Negative Pions with a Carbon Target at a Momentum of 40 GeV
 LONGACRE 1986
PL B177 223 A Measurement of ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ at 22 ${\mathrm {GeV/}}\mathit c$ and a Systematic Study of the $2+{}^{+}{}^{}$ Meson Spectrum
 CHABAUD 1981
APP B12 575 A Study of the D-wave in the ${{\mathit K}^{+}}{{\mathit K}^{-}}$ System of the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$ at 18 GeV
 GORLICH 1980
NP B174 16 A Model Independent Partial Wave Analysis of the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$ at $\sim{}$ 18 ${\mathrm {GeV/}}\mathit c$
 CORDEN 1979
NP B157 250 An Amplitude Analysis of ${{\mathit \pi}}{{\mathit \pi}}$ Scattering from New Data on the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$
 POLYCHRONAKOS 1979
PR D19 1317 Study of the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ at 6.0 and 7.0 ${\mathrm {GeV/}}\mathit c$