# ${{\boldsymbol \rho}{(770)}}$ MASS

We no longer list ${\mathit S}{\mathrm -wave}$ Breit-Wigner fits, or data with high combinatorial background.

# CHARGED ONLY, HADROPRODUCED INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN CHG  COMMENT
$\bf{ 766.5 \pm1.1}$ OUR AVERAGE
$763.7$ $\pm3.2$
 1997
CBAR ${{\overline{\mathit p}}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
$768$ $\pm9$
 1991
EHS 400 ${{\mathit p}}{{\mathit p}}$
$767$ $\pm3$ 2935 1
 1987
SPEC - 200 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {Cu}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{}^{}\mathrm {Cu}$
$761$ $\pm5$ 967 1
 1987
SPEC - 200 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {Pb}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{}^{}\mathrm {Pb}$
$771$ $\pm4$
 1986
SPEC + 202 ${{\mathit \pi}^{+}}$ ${}^{}\mathrm {A}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{0}}{}^{}\mathrm {A}$
$766$ $\pm7$ 6500 2
 1973
OSPK - 5 ${{\mathit \pi}^{-}}{{\mathit p}}$
$766.8$ $\pm1.5$ 9650 3
 1968
RVUE - 1.7$-$3.2 ${{\mathit \pi}^{-}}{{\mathit p}}$ , $\mathit t$ $<$10
$767$ $\pm6$ 900 1
 1967
HBC - 4.2 ${{\mathit \pi}^{-}}{{\mathit p}}$ , $\mathit t$ $<$10
1  Mass errors enlarged by us to $\Gamma /\sqrt {\mathit N }$; see the note with the ${{\mathit K}^{*}{(892)}}$ mass.
2  Phase shift analysis. Systematic errors added corresponding to spread of different fits.
3  From fit of 3-parameter relativistic ${\mathit P}{\mathrm -wave}$ Breit-Wigner to total mass distribution. Includes BATON 1968 , MILLER 1967B, ALFF-STEINBERGER 1966 , HAGOPIAN 1966 , HAGOPIAN 1966B, JACOBS 1966B, JAMES 1966 , WEST 1966 , BLIEDEN 1965 and CARMONY 1964 .
References:
 ABELE 1997
PL B391 191 High Mass ${{\mathit \rho}}$ Meson States from ${{\overline{\mathit p}}}{{\mathit d}}$ Annihilation at Rest into ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit p}}_{spect.}$
 AGUILAR-BENITEZ 1991
ZPHY C50 405 Inclusive Particle Production in 400 ${\mathrm {GeV/}}\mathit c$ ${{\mathit p}}{{\mathit p}}$ Interactions
 CAPRARO 1987
NP B288 659 The ${{\mathit \rho}{(770)}}$ Radiative Decay Width: A Measurement at 200 GeV
 HUSTON 1986
PR D33 3199 Measurement of the Resonance Parameters and Radiative Width of the ${{\mathit \rho}{(770)}^{+}}$
 BYERLY 1973
PR D7 637 ${{\mathit \rho}{(770)}^{-}}$ Production and Decay in the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit p}}$ at 5 ${\mathrm {GeV/}}\mathit c$
 PISUT 1968
NP B6 325 ${{\mathit \rho}}$ Meson Shape
 EISNER 1967
PR 164 1699 ${{\mathit \pi}^{-}}{{\mathit p}}$ Two Prong Interactions at 4.16 ${\mathrm {GeV/}}\mathit c$