# ${{\boldsymbol \Sigma}{(1670)}}$ MASS (PRODUCTION EXPERIMENTS) INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN CHG  COMMENT
$\bf{ \approx{}\text{ 1670}}$ OUR ESTIMATE
$1670$ $\pm4$ 1
 1976
DPWA Isospin-1 total $\sigma{}$
$1675$ $\pm10$ 2
 1976
DBC - ${{\mathit K}^{-}}{{\mathit N}}$ 1.6$-$1.75 ${\mathrm {GeV/}}\mathit c$
$1665$ $\pm1$
 1974
HBC ${{\mathit K}^{-}}{{\mathit p}}$ 2.87 ${\mathrm {GeV/}}\mathit c$
$1688$ $\pm2$ 1.2k
 1974
HBC 0 Quasi-2-body $\sigma{}$
$1670$ $\pm6$
 1970 B
HBC ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}{{\mathit \pi}}$ 4 GeV
$1668$ $\pm10$
 1970 B
HBC ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}$3 ${{\mathit \pi}}$ 4 GeV
$1660$ $\pm10$
 1963
HBC + ${{\mathit K}^{-}}{{\mathit p}}$ 1.51 ${\mathrm {GeV/}}\mathit c$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$1668$ $\pm10$ 150 3
 1981
OMEG - ${{\mathit \pi}^{-}}{{\mathit p}}$ 9,12 ${\mathrm {GeV/}}\mathit c$
$1655\text{ to }1677$
 1976
HBC + ${{\mathit K}^{-}}{{\mathit p}}$ 4.2 ${\mathrm {GeV/}}\mathit c$
$1665$ $\pm5$
 1968
CNTR ${{\mathit K}^{-}}{{\mathit p}}$ , ${{\mathit d}}$ total $\sigma$
$1661$ $\pm9$ 70
 1968
HBC + See BARNES 1969E
$1685$
 1962 C
HBC -0 ${{\mathit \pi}^{-}}{{\mathit p}}$ 2$-$2.2 ${\mathrm {GeV/}}\mathit c$
1  Total cross-section bump with ($\mathit J$+1/2) $\Gamma _{{\mathrm {el}}}$ $/$ $\Gamma _{{\mathrm {total}}}$ = 0.23.
2  Enhancements in ${{\mathit \Sigma}}{{\mathit \pi}}$ and ${{\mathit \Sigma}}{{\mathit \pi}}{{\mathit \pi}}$ cross sections.
3  Backward production in the ${{\mathit \Lambda}}{{\mathit \pi}^{-}}{{\mathit K}^{+}}$ final state.
References:
 FERRERSORIA 1981
NP B178 373 Backward ${{\mathit K}^{*0}}$ Production in the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}^{0}}{{\mathit K}^{+}}{{\mathit \pi}^{-}}$ at 9 and 12 ${\mathrm {GeV/}}\mathit c$
 CARROLL 1976
PRL 37 806 Structures in ${{\mathit K}^{-}}$ Nucleon Total Cross Sections below 1.1 ${\mathrm {GeV/}}\mathit c$
 HEPP 1976
NP B115 82 A Study of ${{\mathit K}^{-}}{{\mathit n}}$ Interactions in the Center of Mass Energy Range from 1.60 to 1.75 GeV
 TIMMERMANS 1976
NP B112 77 Production of ${{\mathit \Sigma}{(1660)}}$ in ${{\mathit K}^{-}}{{\mathit p}}$ Interactions at 4.2 ${\mathrm {GeV/}}\mathit c$
 APSELL 1974
PR D10 1419 Production and Decay of ${{\mathit \Sigma}{(1660)}}$
 BERTHON 1974
NC 21A 146 Cross Sections for Quasi-two-body Reactions in ${{\mathit K}^{-}}{{\mathit p}}$ Interactions between 1263 and 1843 ${\mathrm {MeV}}/\mathit c$
 AGUILAR-BENITEZ 1970B
PRL 25 58 Observation of ${{\mathit \Sigma}}$ Resonances in the 1670 MeV Mass Region
 BUGG 1968
PR 168 1466 Kaon Nucleon Cross Section from .6 to 2.65 ${\mathrm {GeV/}}\mathit c$
 PRIMER 1968
PRL 20 610 Study of ${{\mathit Y}_{{1}}^{*}{(1660)}}$ and ${{\mathit Y}_{{1}}^{*}{(1690)}}$ Production in ${{\mathit K}^{-}}{{\mathit p}}$ Interactions
 ALVAREZ 1963
PRL 10 184 1660 MeV ${{\mathit Y}_{{1}}^{*}}$ Hyperons
 ALEXANDER 1962C
CERN Conf. 320 ${{\mathit K}^{-}}{{\mathit \pi}}$ Mass Distributions for ${{\mathit \pi}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit Y}}{{\mathit K}}{{\mathit \pi}}$ at Incident Momenta of $1.89 - 2.24$ GeV/$\mathit c$