# 2${{\boldsymbol \pi}}$ MODE INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN CHG  COMMENT
$\bf{ 186 \pm14}$ OUR AVERAGE  Error includes scale factor of 1.3.
$220$ $\pm29$
 1983
LASS 10 ${{\mathit \pi}^{+}}{{\mathit N}}$
$246$ $\pm37$
 1981
OMEG - 12 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ 2 ${{\mathit \pi}}{{\mathit p}}$
$116$ $\pm30$ 476
 1978 B
HBC 0 15 ${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$
$162$ $\pm50$ 175 1
 1977
CIBS 0 25 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}$3 ${{\mathit \pi}}$
$167$ $\pm40$ 600
 1974
DBC 0 6 ${{\mathit \pi}^{+}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit p}}$
$200$ $\pm18$ 2
 1974
ASPK 0 17 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$
$156$ $\pm36$
 1971 C
DBC 0 7 ${{\mathit \pi}^{+}}{{\mathit N}}$
$171$ $\pm65$
 1970
DBC 0 9 ${{\mathit \pi}^{+}}{{\mathit d}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$322$ $\pm35$ , 3
 1979
OMEG 12$-$15 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \pi}}$
$240$ $\pm30$ 2, 4
 1975
RVUE 17 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$
$180$ $\pm30$ 122
 1970 B
HBC + 8 ${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit N}}$2 ${{\mathit \pi}}$
$267$ ${}^{+72}_{-46}$
 1970
HDBC 0 8 ${{\mathit \pi}^{-}}{{\mathit p}}$ , 5.4 ${{\mathit \pi}^{+}}{{\mathit d}}$
$188$ $\pm49$
 1968
DBC 0 5.1 ${{\mathit \pi}^{+}}{{\mathit d}}$
$180$ $\pm40$
 1965
HBC 0 6 ${{\mathit \pi}^{+}}{{\mathit d}}$ , 8 ${{\mathit \pi}^{-}}{{\mathit p}}$
1  Width errors enlarged by us to 4${}\Gamma /\sqrt {\mathit N }$; see the note with the ${{\mathit K}^{*}{(892)}}$ mass.
2  Uses same data as HYAMS 1975 and BECKER 1979 .
3  From a phase shift solution containing a ${{\mathit f}_{{2}}^{\,'}{(1525)}}$ width two times larger than the ${{\mathit K}}{{\overline{\mathit K}}}$ result.
4  From phase-shift analysis. Error takes account of spread of different phase-shift solutions.

${{\mathit \rho}_{{3}}{(1690)}}$ width, 2 ${{\mathit \pi}}$ mode (MeV)
References:
 DENNEY 1983
PR D28 2726 Study of ${{\mathit K}^{+}}{{\mathit K}^{-}}$ Production in ${{\mathit \pi}^{+}}{{\mathit d}}$ Interactions at 10 ${\mathrm {GeV/}}\mathit c$ and Evidence for a $\mathit J{}^{P} = 7{}^{-}$ Resonance M(2750) Decaying into ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$
 EVANGELISTA 1981
NP B178 197 Results from a ${{\mathit \pi}^{-}}{{\mathit p}}$ Slow Proton Trigger Experiment at 12 ${\mathrm {GeV/}}\mathit c$
 CORDEN 1979
NP B157 250 An Amplitude Analysis of ${{\mathit \pi}}{{\mathit \pi}}$ Scattering from New Data on the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$
 BALTAY 1978B
PR D17 62 Meson Resonance Production in ${{\mathit \pi}^{+}}{{\mathit p}}$ Interactions at 15 ${\mathrm {GeV/}}\mathit c$
 ANTIPOV 1977
NP B119 45 Boson States in the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit p}}$ with Leading ${{\mathit \pi}^{+}}$ Meson at 25 ${\mathrm {GeV/}}\mathit c$
 ESTABROOKS 1975
NP B95 322 ${{\mathit \pi}}{{\mathit \pi}}$ Partial Waves from 0.6 to 1.8 GeV
 ENGLER 1974
PR D10 2070 ${{\mathit \pi}}{{\mathit \pi}}$ Scattering in the Energy Region 0.6 to 1.42 GeV
 GRAYER 1974
NP B75 189 High Statistics Study of the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit n}}$ : Apparatus, Method of Analysis, and General Features of Results at 17 ${\mathrm {GeV/}}\mathit c$
 MATTHEWS 1971C
NP B33 1 Production of the ${{\mathit g}}$ Meson in ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit g}^{0}}{{\mathit N}}$ Charge Exchange Channels at 7 ${\mathrm {GeV/}}\mathit c$
 ARMENISE 1970
LNC 4 199 Nonstrange Boson Resonances Produced in ${{\mathit \pi}^{+}}{{\mathit d}}$ Interactions at 9 ${\mathrm {GeV/}}\mathit c$
 BARTSCH 1970B
NP B22 109 The ${{\mathit g}}$-meson
 STUNTEBECK 1970
PL 32B 391 Evidence for Structure in the ${{\mathit f}^{0}}$ and ${{\mathit g}^{0}}$ Dipion Mass Regions
 ARMENISE 1968
NC 54A 999 Dipion System in ${{\mathit \pi}^{+}}{{\mathit d}}$ Interactions at 5.1 ${\mathrm {GeV/}}\mathit c$. Search for Epsilon Zero and G Quantum Numbers.
 GOLDBERG 1965
PL 17 354 Evidence for a New ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Resonance at 1.67 GeV